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Soru

Zorluk: KolayIPv6 Static Routing

A network administrator needs to configure a static route on a Cisco router for the destination network 2001:DB8:5::/642001:\text{DB8}:5::/64 using the next-hop router's link-local address FE80::2\text{FE80}::2 reachable via interface GigabitEthernet0/0/1. Which Cisco IOS command correctly configures this route?

  1. ipv6 route 2001:db8:5::/64 GigabitEthernet0/0/1 fe80::2Cevap
  2. B
    ipv6 route 2001:db8:5::/64 fe80::2
  3. C
    ipv6 route 2001:db8:5::/64 fe80::2 GigabitEthernet0/0/1
  4. D
    ip route 2001:db8:5::/64 GigabitEthernet0/0/1 fe80::2

Cevap

The command 'ipv6 route 2001:db8:5::/64 GigabitEthernet0/0/1 fe80::2' correctly configures the static route.
The command specifying 'ipv6 route 2001:db8:5::/64 GigabitEthernet0/0/1 fe80::2' follows the correct Cisco IOS syntax. When using a link-local address as a next hop, specifying the local exit interface before the link-local address is mandatory because link-local addresses are ambiguous across multiple physical links.

Adım Adım Çözüm

1
Identify the proper command keyword for IPv6 static routes.
Use 'ipv6 route' rather than 'ip route'.
IPv6 routing configurations require the 'ipv6' keyword prefix in Cisco IOS.
2
Specify destination prefix, local exit interface, and link-local next-hop address in order.
Format as 'ipv6 route 2001:db8:5::/64 GigabitEthernet0/0/1 fe80::2'.
Because link-local addresses (FE80::/10) are reused across multiple interfaces, the router cannot determine which exit interface to use unless specified in the command before the next-hop link-local address.

Anahtar Kavram

IPv6 Static Routing with Link-Local Next-Hop
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Konular

IPv6 Static Routing

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