An administrator is configuring an extended ACL for BGP route selection. Which ACE should the administrator issue to permit only 10.0.0.0 networks with a /16 through /32 prefix?

IT Questions BankCategory: CCNPAn administrator is configuring an extended ACL for BGP route selection. Which ACE should the administrator issue to permit only 10.0.0.0 networks with a /16 through /32 prefix?
An administrator is configuring an extended ACL for BGP route selection. Which ACE should the administrator issue to permit only 10.0.0.0 networks with a /16 through /32 prefix? 1IT Administrator Staff asked 5 months ago

An administrator is configuring an extended ACL for BGP route selection. Which ACE should the administrator issue to permit only 10.0.0.0 networks with a /16 through /32 prefix?

  • permit ip 10.0.0.0 255.255.255.255 255.255.255.0 0.0.0.255
  • permit ip 10.0.0.0 0.0.255.255 255.255.255.0 0.0.0.255
  • permit ip 10.0.0.0 0.0.0.255 0.0.0.255 255.255.255.0
  • permit ip 10.0.0.0 0.0.255.255 255.255.0.0 0.0.0.255

Explanation: When an ACL is used for BGP network selection, the ACE source field matches against the network portion of the network, and the destination field matches against the network mask. In this example, the ACE source field and wildcard-mask of 10.10.0.0 0.0.255.255 will match the first 16 bits of network 10.0.0.0. The destination field and wildcard-mask of 255.255.0.0 0.0.255.255 will match prefix lengths of /16 through /32.

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