Refer to the exhibit. A network administrator is configuring RT1 for inter-VLAN routing. The switch is configured correctly and is functional. Host1, Host2, and Host3 cannot communicate with each other. Based on the router configuration, what is causing the problem?
- Interface Fa0/0 is missing IP address configuration information.
- IP addresses on the subinterfaces are incorrectly matched to the VLANs.
- Each subinterface of Fa0/0 needs separate no shutdown commands.
- Routers do not support 802.1Q encapsulation on subinterfaces.
Explanation: Since Host 1 (in VLAN 20) has the IP 172.18.1.10/27, the subinterface Fa0/0.1 should be configured with an IP address in the network 184.108.40.206/27. Similarly, Fa0/0.2 should be with an IP address in the network 220.127.116.11/27 and Fa0/0.3 should be with an IP address in the network 18.104.22.168/27.
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