){kind=link}
Topology
Objectives
- Secure the server farm using private VLANs.
- Secure the staff VLAN from the student VLAN.
- Secure the staff VLAN when temporary staff personnel are used.
Background
In this lab, you will configure the network to protect the VLANs using router ACLs, VLAN ACLs, and private VLANs. First, you will secure the new server farm (Host C) by using private VLANs. Service providers use private VLANs to separate different customers’ traffic while utilizing the same parent VLAN for all server traffic. The private VLANs provide traffic isolation between devices, even though they might exist on the same VLAN.
You will then secure the staff VLAN from the student VLAN by using a RACL, which prevents traffic from the student VLAN from reaching the staff VLAN. This allows the student traffic to utilize the network and Internet services while keeping the students from accessing any of the staff resources.
Lastly, you will configure a VACL that allows a host on the staff network to be set up to use the VLAN for access but keeps the host isolated from the rest of the staff machines. This machine is used by temporary staff employees.
Note: This lab uses Cisco Catalyst 3560 and 2960 switches running Cisco IOS 15.0(2) IP Services and LAN Base images, respectively. The 3560 and 2960 switches are configured with the SDM templates “dual-ipv4-and-ipv6 routing” and “lanbase-routing”, respectively. Depending on the switch model and Cisco IOS Software version, the commands available and output produced might vary from what is shown in this lab. Catalyst 3650 switches (running any Cisco IOS XE release) and Catalyst 2960-Plus switches (running any supported Cisco IOS image) can be used in place of the Catalyst 3560 switches and the Catalyst 2960 switches.
Required Resources
- 2 switches (Cisco 2960 with the Cisco IOS Release 15.0(2)SE6 C2960-LANBASEK9-M image or comparable)
- 2 switches (Cisco 3560 with the Cisco IOS Release 15.0(2)SE6 C3560-IPSERVICESK9-M image or comparable)
- 4 PCs
- Ethernet and console cables
Prepare the switches for the lab
The instructions in this lab assume that the switches are running using the final configuration from Lab 10-1 “Securing Layer 2 Switches”.
Part 1: Configure private VLANs.
Private VLANs are an option when you have multiple devices in the same broadcast domain, but need to prevent them from communicating from each other. A good example is in a server farm where the servers do not need to receive other server’s broadcast traffic.
In a sense, private VLANs allow you to sub-divide the layer 2 broadcast domain. You are able to associate a primary VLAN with multiple secondary VLANs, while using the same IP address space for all of the devices.
Secondary VLANs are defined as one of two types; either COMMUNITY or ISOLATED. A secondary community VLAN allows the hosts within the VLAN to communicate with one another and the primary VLAN. A secondary isolated VLAN does not allow hosts to communicate with others in the same isolated VLAN. They can only communicate with the primary VLAN.
A primary VLAN can have multiple secondary community VLANs associated with it, but only one secondary isolated VLAN.
Step 1: Configure VTP
VTP version 2 does not support PVLANs, so any switches that must host a PVLAN port have to be in transparent mode and the PVLANs have to be manually configured. VTP version 3 does support PVLANs, so the configuration only has to be done in one place.
a. Convert all switches to VTP version 3, and configure a VTP password of cisco123. Configure all four switches. An example of DLS1 configuration follows:
DLS1(config)# vtp version 3
Aug 4 12:39:11.944: %SW_VLAN-6-OLD_CONFIG_FILE_READ: Old version 2 VLAN configuration file detected and read OK. Version 3
files will be written in the future.
DLS1(config)# vtp password cisco123
Setting device VTP password to cisco123
DLS1(config)# exit
b. Configure DLS1 to be the primary switch for VLANs.
DLS1# vtp primary vlan This system is becoming primary server for feature vlan No conflicting VTP3 devices found. Do you want to continue? [confirm] DLS1# Aug 4 12:40:44.680: %SW_VLAN-4-VTP_PRIMARY_SERVER_CHG: e840.406f.7280 has become the primary server for the VLAN VTP feature DLS1#
Step 2: Configure the Primary Private VLAN
a. Based on the topology diagram, VLAN 150 will be used as the VLAN for the new server farm. On VTP server DLS1, add VLAN 150, name the VLAN server-farm and exit vlan config mode. This allows VLAN 150 to be propagated to the other switches in the network. In addition, configure DLS1 as the root bridge for VLANs 150, 151, and 152.
DLS1(config)# vlan 150 DLS1(config-vlan)# name SERVER-FARM DLS1(config-vlan)# exit DLS1(config)# spanning-tree vlan 150-152 root primary
b. Once this is complete, verify that VLAN 150 is preset in the database on DLS2.
Step 2: Configure interface VLAN 150 at DLS1 and DLS2:
DLS1(config)# interface vlan 150 DLS1(config-if)# ip address 172.16.150.1 255.255.255.0 DLS2(config)# interface vlan 150 DLS2(config-if)# ip add 172.16.150.2 255.255.255.0
Step 3: Create the PVLANs on the VTP server
a. Configure the new PVLANs on DLS1. Secondary PVLAN 151 is an isolated VLAN, while secondary PVLAN 152 is used as a community PVLAN. Configure these new PVLANs and associate them with primary VLAN 150.
DLS1(config)# vlan 151 DLS1(config-vlan)# private-vlan isolated DLS1(config-vlan)# exit DLS1(config)# vlan 152 DLS1(config-vlan)# private-vlan community DLS1(config-vlan)# exit DLS1(config)# vlan 150 DLS1(config-vlan)# private-vlan primary DLS1(config-vlan)# private-vlan association 151,152 DLS1(config-vlan)# exit DLS1(config)#
b. Verify the PVLANs propagate to the other switches.
DLS2# show vlan brief | include active 1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4 99 Management active 100 STAFF active 150 SERVER-FARM active 151 VLAN0151 active 152 VLAN0152 active 200 STUDENTS active 666 NATIVE_DO_NOT_USE active
c. Verify the creation of the secondary PVLANs and their association with the primary VLAN using the show vlan private-vlan command. Note that no ports are currently associated with these VLANs. This is expected behavior.
DLS1#show vlan private-vlan Primary Secondary Type Ports ------- --------- ----------------- ------------------------------------------ 150 151 isolated 150 152 community DLS2# show vlan private-vlan Primary Secondary Type Ports ------- --------- ----------------- ----------------------------------------- 150 151 isolated 150 152 community
Step 4: Configure support for routing of PVLANs
The private-vlan mapping interface configuration command permits PVLAN traffic to be switched through Layer 3. Normally you would include all the secondary VLANs to allow for HSRP to work, but for this example we will not include a mapping VLAN 151 on DLS2 so we can demonstrate the isolation of VLAN 151. Configure these commands for interface VLAN 150 on DLS1 and DLS2.
DLS1(config)# interface vlan 150 DLS1(config-if)# private-vlan mapping 151-152 DLS1(config-if)# end DLS2(config)# interface vlan 150 DLS2(config-if)# private-vlan mapping 152 DLS2(config-if)# end
Will hosts assigned to ports on private VLAN 151 be able to communicate directly with each other?
____________________________________________________________________
Step 5: Configure host access to PVLANs
a. On DLS1, configure interface FastEthernet 0/6 so it is in private-vlan host mode and has association to VLAN 150:
DLS1(config)# interface fastethernet 0/6 DLS1(config-if)# switchport mode private-vlan host DLS1(config-if)# switchport private-vlan host-association 150 152 DLS1(config-if)# exit
b. Use the show vlan private-vlan command and note that the ports configured are currently associated with these VLANs.
DLS1#show vlan private-vlan Primary Secondary Type Ports ------- --------- ----------------- ------------------------------------------ 150 151 isolated 150 152 community Fa0/6
c. On DLS2, configure the Fast Ethernet ports that are associated with the server farm private VLANs. Fast Ethernet port 0/6 is used for the secondary isolated PVLAN 151, and ports 0/18–0/20 are used for the secondary community VLAN 152. The switchport mode private-vlan host command sets the mode on the interface and the switchport private-vlan host-association primary-vlan-id secondary-vlan-id command assigns the appropriate VLANs to the interface. The following commands configure the PVLANs on DLS2.
DLS2(config)# interface fastethernet 0/6 DLS2(config-if)# switchport mode private-vlan host DLS2(config-if)# switchport private-vlan host-association 150 151 DLS2(config-if)# exit DLS2(config)# interface range fa0/18 - 20 DLS2(config-if-range)# switchport mode private-vlan host DLS2(config-if-range)# switchport private-vlan host-association 150 152
As servers are added to Fast Ethernet 0/18–20, will these servers be allowed to hear broadcasts from each other? Explain.
___________________________________________________________________
d. Use the show vlan private-vlan command and note that the ports configured are currently associated with these VLANs.
DLS2# show vlan private-vlan Primary Secondary Type Ports ------- --------- ----------------- ----------------------------------------- 150 151 isolated Fa0/6 150 152 community Fa0/18, Fa0/19, Fa0/20
e. Configure HOST C on DLS1 interface f0/6 with the IP address 172.16.150.50/24. Use 172.16.150.1 as the default gateway address.
f. Configure HOST D on DLS2 interface f0/6 with the IP address 172.16.150.150/24. Use 172.16.150.1 as the default gateway address.
Step 6: Verify PVLANs are working
a. From HOST C, try to ping the following addresses – they should all work: 172.16.150.1 (DLS1), 172.16.150.2 (DLS2), 172.16.99.5 (ALS1).
b. From HOST C, try to ping HOST D (172.16.150.150). This should NOT work.
c. From HOST D, try to ping the following addresses – they should all work: 172.16.150.1 (DLS1), 172.16.99.5 (ALS1).
d. From HOST D, try to ping 172.16.150.2 (DLS2). This should NOT work.
Part 3: RACLs.
You can use router access control lists (RACLs) to separate the student and staff VLANs. In this lab scenario, write an ACL that allows the staff VLAN (100) to access the student VLAN (200), and deny student VLAN access to the staff VLAN.
Step 1: Write an extended IP access list
Write an ACL that meets the requirement and assign the access list to the appropriate VLAN interfaces on DLS1 and DLS2 using the ip access-group acl-num {in | out} command.
DLS1(config)# access-list 100 permit tcp 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255 established DLS1(config)# access-list 100 permit icmp 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255 echo-reply DLS1(config)# access-list 100 deny ip 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255 DLS1(config)# access-list 100 permit ip any any DLS1(config)# interface vlan 200 DLS1(config-if)# ip access-group 100 in DLS1(config-if)# exit DLS2(config)# access-list 100 permit tcp 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255 established DLS2(config)# access-list 100 permit icmp 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255 echo-reply DLS2(config)# access-list 100 deny ip 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255 DLS2(config)# access-list 100 permit ip any any DLS2(config)# interface vlan 200 DLS2(config-if)# ip access-group 100 in DLS2(config-if)# exit
e. Check the configuration using the show ip access-list and show ip interface vlan vlan-id commands.
DLS1# show access-lists
Extended IP access list 100
10 permit tcp 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255 established
20 permit icmp 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255 echo-reply
30 deny ip 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255
40 permit ip any any
DLS1# show ip interface vlan 100
Vlan100 is up, line protocol is up
Internet address is 172.16.100.3/24
Broadcast address is 255.255.255.255
Address determined by non-volatile memory
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Multicast reserved groups joined: 224.0.0.2
Outgoing access list is not set
Inbound access list is 100
<output omitted>
f. After the access list has been applied verify the configuration in one of the following ways. Option 1 using real hosts is preferred.
Option 1:
Lab 10-1 finished with ALS1 F0/6 assigned to VLAN 200. Change this assignment to VLAN 100. Host A should be connected to ALS1 F0/6 and assigned the IP address 172.16.100.50/24 with default gateway 172.16.100.1 from Lab 10-1. If not, set Host A up with those parameters.
Host B should be connected to ALS2 F0/6 from Lab 10-1 as well, but its last configuration in that lab was to use DHCP, so assign a static IP address Connect host PC-B to ALS2 port Fa0/6 in student VLAN 200 and assign it IP address 172.16.200.50/24 with default gateway 172.16.200.1.
Ping the staff host from the student host. This ping should fail. Then ping the student host from the staff host. This ping should succeed.
Option 2: On ALS1 set up a simulated host in VLAN 100 and one in VLAN 200 by creating a VLAN 100 and 200 interface on the switch. Give the VLAN 100 interface an IP address in VLAN 100. Give the VLAN 200 interface an IP address in VLAN 200. The following is a sample configuration on ALS1.
ALS1(config)# int vlan 100 ALS1(config-if)# ip address 172.16.100.100 255.255.255.0 ALS1(config)# int vlan 200 ALS1(config-if)# ip address 172.16.200.200 255.255.255.0
Ping the interface of the gateway for the staff VLAN (172.16.100.1) with a source of staff VLAN 100 (172.16.100.100) and then ping with a source of student VLAN 200. The pings from the student VLAN should fail.
ALS1# ping 172.16.100.1 source vl100 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.100.1, timeout is 2 seconds: Packet sent with a source address of 172.16.100.100 !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/205/1007 ms ALS1# ping 172.16.100.1 source vl200 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.100.1, timeout is 2 seconds: Packet sent with a source address of 172.16.200.200 .U.U. Success rate is 0 percent (0/5)
What does a U signify in the output of the ping command?
____________________________________________________________________
Part 4: Configure VACLs.
Configure the network so that the temporary staff host cannot access the rest of the staff VLAN, yet still be able to use the default gateway of the staff subnet to connect to the rest of the network and the ISP. You can accomplish this task by using a VLAN ACL (VACL).
For this scenario, Host C (DLS1 Fast Ethernet 0/6) will act as a temporary staff PC, therefore the VACL must be placed on DLS1.
Step 1: Configure DLS1 F0/6 and Host C
a. Change the configuration of DLS1 F0/6 so that the interface is associated with VLAN 100. To keep things tidy, also remove the private vlan mapping on the interface as well:
DLS1(config)#interface f0/6 DLS1(config-if)#switchport mode access DLS1(config-if)#switchport access vlan 100 DLS1(config-if)#no switchport private-vlan host-association 150 152 DLS1(config-if)#exit
b. Change the configuration of HOST C so that it is using the IP address 172.16.100.150/24 with the default gateway set as 172.16.100.1
Step 2: Configure and apply the VACL
a. Configure an access list on DLS1 called temp-host using the ip access-list extended name command. This list defines the traffic between the host and the rest of the network. Then define the traffic using the permit ip host ip-address subnet wildcard-mask command. Note that you must be explicit about what traffic to match — this isn’t a traffic filtering ACL, it is a traffic matching ACL. If you were to leave the second line of the example below out, pings would work.
DLS1(config)# ip access-list extended temp-host DLS1(config-ext-nacl)# permit ip host 172.16.100.150 172.16.100.0 0.0.0.255 DLS1(config-ext-nacl)# permit icmp host 172.16.100.150 172.16.100.0 0.0.0.255 DLS1(config-ext-nacl)# exit
b. The VACL is defined using a VLAN access map. Access maps are evaluated in a numbered sequence. To set up an access map, use the vlan access-map map-name seq# command. The following configuration defines an access map named block-temp, which uses the match statement to match the traffic defined in the access list and denies that traffic. You also need to add a line to the access map that allows all other traffic. If this line is not added, an implicit deny catches all other traffic and denies it.
DLS1(config)# vlan access-map block-temp 10 DLS1(config-access-map)# match ip address temp-host DLS1(config-access-map)# action drop DLS1(config-access-map)# vlan access-map block-temp 20 DLS1(config-access-map)# action forward DLS1(config-access-map)# exit
c. Define which VLANs the access map should be applied to using the vlan filter map-name vlan-list vlan-ID command.
DLS1(config)# vlan filter block-temp vlan-list 100
d. Verify the VACL configuration using the show vlan access-map command on DLS1.
DLS1# show vlan access-map
Vlan access-map "block-temp" 10
Match clauses:
ip address: temp-host
Action:
drop
Vlan access-map "block-temp" 20
Match clauses:
Action:
forward
Step 3: Test the VACL
a. From HOST C, try to ping to HOST A on ALS1 (172.16.100.50). The ping should fail.
b. From HOST C, try to ping the default gateway (172.16.100.1). The ping should fail.
c. From HOST C, try to ping Host D (172.16.200.50). The ping should succeed.
Step 4: End of Lab
Do not save your configurations. The equipment will be reset for the next lab.
Device Configurations:
Below are the final configurations for each switch. (NOTE: Be aware that some of the configuration elements presented here are left over from the final configuration in Lab 10-1)
DLS1:
DLS1# show run | exclude ! Building configuration... Current configuration : 4486 bytes version 15.0 no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption hostname DLS1 boot-start-marker boot-end-marker enable secret 5 $1$nALw$wcxoHd/vGTaOMWVKSc3qH. username lastditch privilege 15 password 0 $cisco123& aaa new-model aaa authentication login REMOTE-CONTROL group radius local aaa session-id common clock timezone CST -6 0 clock summer-time CDT recurring system mtu routing 1500 ip routing no ip domain-lookup ip domain-name CCNP.NET spanning-tree mode pvst spanning-tree extend system-id spanning-tree vlan 99-100,150-152 priority 24576 spanning-tree vlan 200 priority 28672 vlan access-map block-temp 10 match ip address temp-host action drop vlan access-map block-temp 20 action forward vlan filter block-temp vlan-list 100 vlan internal allocation policy ascending interface FastEthernet0/1 switchport mode access shutdown interface FastEthernet0/2 switchport mode access shutdown interface FastEthernet0/3 switchport mode access shutdown interface FastEthernet0/4 switchport mode access shutdown interface FastEthernet0/5 switchport mode access shutdown interface FastEthernet0/6 switchport access vlan 100 switchport mode access spanning-tree portfast interface FastEthernet0/7 switchport trunk encapsulation dot1q switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate interface FastEthernet0/8 switchport trunk encapsulation dot1q switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate interface FastEthernet0/9 switchport trunk encapsulation dot1q switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate interface FastEthernet0/10 switchport trunk encapsulation dot1q switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate interface FastEthernet0/11 switchport trunk encapsulation dot1q switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate interface FastEthernet0/12 switchport trunk encapsulation dot1q switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate interface FastEthernet0/13 switchport mode access shutdown interface FastEthernet0/14 switchport mode access shutdown interface FastEthernet0/15 switchport mode access shutdown interface FastEthernet0/16 switchport mode access shutdown interface FastEthernet0/17 switchport mode access shutdown interface FastEthernet0/18 switchport mode access shutdown interface FastEthernet0/19 switchport mode access shutdown interface FastEthernet0/20 switchport mode access shutdown interface FastEthernet0/21 switchport mode access shutdown interface FastEthernet0/22 switchport mode access shutdown interface FastEthernet0/23 switchport mode access shutdown interface FastEthernet0/24 switchport mode access shutdown interface GigabitEthernet0/1 switchport mode access shutdown interface GigabitEthernet0/2 switchport mode access shutdown interface Vlan1 no ip address shutdown interface Vlan99 ip address 172.16.99.3 255.255.255.0 standby 0 preempt standby 99 ip 172.16.99.1 standby 99 priority 150 interface Vlan100 ip address 172.16.100.3 255.255.255.0 standby 100 ip 172.16.100.1 standby 100 priority 150 standby 100 preempt interface Vlan150 ip address 172.16.150.1 255.255.255.0 private-vlan mapping 151-152 interface Vlan200 ip address 172.16.200.3 255.255.255.0 ip access-group 100 in ip helper-address 172.16.99.50 standby 200 ip 172.16.200.1 standby 200 preempt ip http server ip http secure-server ip access-list extended temp-host permit ip host 172.16.100.150 172.16.100.0 0.0.0.255 permit icmp host 172.16.100.150 172.16.100.0 0.0.0.255 access-list 100 permit tcp 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255 established access-list 100 permit icmp 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255 echo-reply access-list 100 deny ip 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255 access-list 100 permit ip any any radius server RADIUS address ipv4 172.16.99.50 auth-port 1812 acct-port 1813 key WinRadius line con 0 exec-timeout 0 0 logging synchronous line vty 0 4 password cisco login authentication REMOTE-CONTROL line vty 5 15 password cisco ntp master 10 end DLS1#
DLS2:
DLS2# show run | exclude ! Building configuration... Current configuration : 3954 bytes version 15.0 no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption hostname DLS2 boot-start-marker boot-end-marker enable secret 5 $1$ZyiH$/CWGDDDbxTAP5qxnFdfo3/ username lastditch privilege 15 password 0 $cisco123& aaa new-model aaa authentication login REMOTE-CONTROL group radius local aaa session-id common clock timezone CST -6 0 clock summer-time CDT recurring system mtu routing 1500 ip routing no ip domain-lookup ip domain-name CCNP.NET spanning-tree mode pvst spanning-tree extend system-id spanning-tree vlan 99-100 priority 28672 spanning-tree vlan 200 priority 24576 vlan internal allocation policy ascending interface FastEthernet0/1 shutdown interface FastEthernet0/2 shutdown interface FastEthernet0/3 shutdown interface FastEthernet0/4 shutdown interface FastEthernet0/5 shutdown interface FastEthernet0/6 switchport private-vlan host-association 150 151 switchport mode private-vlan host interface FastEthernet0/7 switchport trunk encapsulation dot1q switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate interface FastEthernet0/8 switchport trunk encapsulation dot1q switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate interface FastEthernet0/9 switchport trunk encapsulation dot1q switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate interface FastEthernet0/10 switchport trunk encapsulation dot1q switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate interface FastEthernet0/11 switchport trunk encapsulation dot1q switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate interface FastEthernet0/12 switchport trunk encapsulation dot1q switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate interface FastEthernet0/13 shutdown interface FastEthernet0/14 shutdown interface FastEthernet0/15 shutdown interface FastEthernet0/16 shutdown interface FastEthernet0/17 shutdown interface FastEthernet0/18 switchport private-vlan host-association 150 152 switchport mode private-vlan host shutdown interface FastEthernet0/19 switchport private-vlan host-association 150 152 switchport mode private-vlan host shutdown interface FastEthernet0/20 switchport private-vlan host-association 150 152 switchport mode private-vlan host shutdown interface FastEthernet0/21 shutdown interface FastEthernet0/22 shutdown interface FastEthernet0/23 shutdown interface FastEthernet0/24 shutdown interface GigabitEthernet0/1 shutdown interface GigabitEthernet0/2 shutdown interface Vlan1 no ip address shutdown interface Vlan99 ip address 172.16.99.4 255.255.255.0 standby 0 preempt standby 99 ip 172.16.99.1 interface Vlan100 ip address 172.16.100.4 255.255.255.0 ip access-group 100 in standby 100 ip 172.16.100.1 standby 100 preempt interface Vlan150 ip address 172.16.150.2 255.255.255.0 private-vlan mapping 152 interface Vlan200 ip address 172.16.200.4 255.255.255.0 ip access-group 100 in standby 200 ip 172.16.200.1 standby 200 priority 150 standby 200 preempt ip http server ip http secure-server access-list 100 permit tcp 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255 established access-list 100 permit icmp 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255 echo-reply access-list 100 deny ip 172.16.200.0 0.0.0.255 172.16.100.0 0.0.0.255 access-list 100 permit ip any any radius server RADIUS address ipv4 172.16.99.50 auth-port 1812 acct-port 1813 key WinRadius line con 0 exec-timeout 0 0 logging synchronous line vty 0 4 password cisco login authentication REMOTE-CONTROL line vty 5 15 password cisco ntp server 172.16.99.3 end DLS2#
ALS1:
ALS1# show run | exclude ! Building configuration... Current configuration : 6870 bytes version 15.0 no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption hostname ALS1 boot-start-marker boot-end-marker enable secret 5 $1$vsgl$SlBwgh5y6we8hINmVADaH. username lastditch privilege 15 password 0 $cisco123& aaa new-model aaa authentication login REMOTE-CONTROL group radius local aaa session-id common clock timezone CST -6 0 clock summer-time CDT recurring system mtu routing 1500 ip dhcp snooping vlan 100,200 ip dhcp snooping no ip domain-lookup ip domain-name CCNP.NET errdisable recovery cause psecure-violation errdisable recovery interval 30 spanning-tree mode pvst spanning-tree extend system-id vlan internal allocation policy ascending interface FastEthernet0/1 shutdown interface FastEthernet0/2 shutdown interface FastEthernet0/3 shutdown interface FastEthernet0/4 shutdown interface FastEthernet0/5 shutdown interface FastEthernet0/6 switchport access vlan 100 switchport mode access switchport port-security maximum 2 switchport port-security switchport port-security mac-address sticky switchport port-security mac-address sticky 000c.2915.ab9d storm-control broadcast level pps 1k 300 storm-control multicast level 40.00 25.00 storm-control unicast level 65.00 35.00 storm-control action trap spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/7 switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate ip dhcp snooping trust interface FastEthernet0/8 switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate ip dhcp snooping trust interface FastEthernet0/9 switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate ip dhcp snooping trust interface FastEthernet0/10 switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate ip dhcp snooping trust interface FastEthernet0/11 switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate ip dhcp snooping trust interface FastEthernet0/12 switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate ip dhcp snooping trust interface FastEthernet0/13 shutdown interface FastEthernet0/14 shutdown interface FastEthernet0/15 switchport access vlan 100 switchport mode access switchport port-security maximum 2 switchport port-security switchport port-security mac-address sticky storm-control broadcast level pps 1k 300 storm-control multicast level 40.00 25.00 storm-control unicast level 65.00 35.00 storm-control action trap spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/16 switchport access vlan 100 switchport mode access switchport port-security maximum 2 switchport port-security switchport port-security mac-address sticky storm-control broadcast level pps 1k 300 storm-control multicast level 40.00 25.00 storm-control unicast level 65.00 35.00 storm-control action trap spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/17 switchport access vlan 100 switchport mode access switchport port-security maximum 2 switchport port-security switchport port-security mac-address sticky storm-control broadcast level pps 1k 300 storm-control multicast level 40.00 25.00 storm-control unicast level 65.00 35.00 storm-control action trap spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/18 switchport access vlan 100 switchport mode access switchport port-security maximum 2 switchport port-security switchport port-security mac-address sticky storm-control broadcast level pps 1k 300 storm-control multicast level 40.00 25.00 storm-control unicast level 65.00 35.00 storm-control action trap spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/19 switchport access vlan 100 switchport mode access switchport port-security maximum 2 switchport port-security switchport port-security mac-address sticky storm-control broadcast level pps 1k 300 storm-control multicast level 40.00 25.00 storm-control unicast level 65.00 35.00 storm-control action trap spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/20 switchport access vlan 100 switchport mode access switchport port-security maximum 2 switchport port-security switchport port-security mac-address sticky storm-control broadcast level pps 1k 300 storm-control multicast level 40.00 25.00 storm-control unicast level 65.00 35.00 storm-control action trap spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/21 switchport access vlan 100 switchport mode access switchport port-security maximum 2 switchport port-security switchport port-security mac-address sticky storm-control broadcast level pps 1k 300 storm-control multicast level 40.00 25.00 storm-control unicast level 65.00 35.00 storm-control action trap spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/22 switchport access vlan 100 switchport mode access switchport port-security maximum 2 switchport port-security switchport port-security mac-address sticky storm-control broadcast level pps 1k 300 storm-control multicast level 40.00 25.00 storm-control unicast level 65.00 35.00 storm-control action trap spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/23 switchport access vlan 100 switchport mode access switchport port-security maximum 2 switchport port-security switchport port-security mac-address sticky storm-control broadcast level pps 1k 300 storm-control multicast level 40.00 25.00 storm-control unicast level 65.00 35.00 storm-control action trap spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/24 switchport access vlan 100 switchport mode access switchport port-security maximum 2 switchport port-security switchport port-security mac-address sticky storm-control broadcast level pps 1k 300 storm-control multicast level 40.00 25.00 storm-control unicast level 65.00 35.00 storm-control action trap spanning-tree portfast ip dhcp snooping limit rate 20 interface GigabitEthernet0/1 shutdown interface GigabitEthernet0/2 shutdown interface Vlan1 no ip address shutdown interface Vlan99 ip address 172.16.99.5 255.255.255.0 ip default-gateway 172.16.99.1 ip http server ip http secure-server radius server RADIUS address ipv4 172.16.99.50 auth-port 1812 acct-port 1813 key WinRadius line con 0 exec-timeout 0 0 logging synchronous line vty 0 4 password cisco login authentication REMOTE-CONTROL line vty 5 15 password cisco ntp server 172.16.99.3 end ALS1#
ALS2:
ALS2# show run | exclude ! Building configuration... Current configuration : 4150 bytes version 15.0 no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption hostname ALS2 boot-start-marker boot-end-marker enable secret 5 $1$n/LD$LmuGHmSGRPgfTrsqf8q7O1 username lastditch privilege 15 password 0 $cisco123& aaa new-model aaa authentication login REMOTE-CONTROL group radius local aaa session-id common clock timezone CST -6 0 clock summer-time CDT recurring system mtu routing 1500 ip dhcp snooping vlan 100,200 ip dhcp snooping no ip domain-lookup ip domain-name CCNP.NET spanning-tree mode pvst spanning-tree extend system-id vlan internal allocation policy ascending interface FastEthernet0/1 shutdown interface FastEthernet0/2 shutdown interface FastEthernet0/3 shutdown interface FastEthernet0/4 shutdown interface FastEthernet0/5 shutdown interface FastEthernet0/6 switchport access vlan 200 switchport mode access switchport port-security spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/7 switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate ip dhcp snooping trust interface FastEthernet0/8 switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate ip dhcp snooping trust interface FastEthernet0/9 switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate ip dhcp snooping trust interface FastEthernet0/10 switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate ip dhcp snooping trust interface FastEthernet0/11 switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate ip dhcp snooping trust interface FastEthernet0/12 switchport trunk native vlan 666 switchport mode trunk switchport nonegotiate ip dhcp snooping trust interface FastEthernet0/13 shutdown interface FastEthernet0/14 shutdown interface FastEthernet0/15 switchport access vlan 200 switchport mode access switchport port-security spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/16 switchport access vlan 200 switchport mode access switchport port-security spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/17 switchport access vlan 200 switchport mode access switchport port-security spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/18 switchport access vlan 200 switchport mode access switchport port-security spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/19 switchport access vlan 200 switchport mode access switchport port-security spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/20 switchport access vlan 200 switchport mode access switchport port-security spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/21 switchport access vlan 200 switchport mode access switchport port-security spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/22 switchport access vlan 200 switchport mode access switchport port-security spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/23 switchport access vlan 200 switchport mode access switchport port-security spanning-tree portfast ip dhcp snooping limit rate 20 interface FastEthernet0/24 switchport access vlan 200 switchport mode access switchport port-security spanning-tree portfast ip dhcp snooping limit rate 20 interface GigabitEthernet0/1 shutdown interface GigabitEthernet0/2 shutdown interface Vlan1 no ip address interface Vlan99 ip address 172.16.99.6 255.255.255.0 ip default-gateway 172.16.99.1 ip http server ip http secure-server radius server RADIUS address ipv4 172.16.99.50 auth-port 1812 acct-port 1813 key WinRadius line con 0 exec-timeout 0 0 logging synchronous line vty 0 4 password cisco login authentication REMOTE-CONTROL line vty 5 15 password cisco ntp server 172.16.99.3 end ALS2