200-301 · Question #265
Refer to Exhibit. The loopback1 interface of the Atlanta router must reach the loopback3 interface of the Washington router. Which two static host routes must be configured on the NEW York router? (Ch
The correct answer is A. ipv6 route 2000::1/128 2012::1 B. ipv6 route 2000::3/128 2023::3. To enable the New York router to reach specific loopback interfaces on Atlanta and Washington routers, two static IPv6 host routes must be configured, each pointing to the respective next-hop interface IP address.
Question
Exhibits
Options
- Aipv6 route 2000::1/128 2012::1
- Bipv6 route 2000::3/128 2023::3
- Cipv6 route 2000::3/128 s0/0/0
- Dipv6 route 2000::1/128 2012::2
- Eipv6 route 2000::1/128 s0/0/1
How the community answered
(26 responses)- A77% (20)
- C4% (1)
- D12% (3)
- E8% (2)
Why each option
To enable the New York router to reach specific loopback interfaces on Atlanta and Washington routers, two static IPv6 host routes must be configured, each pointing to the respective next-hop interface IP address.
This command configures a static host route on the New York router for the IPv6 address 2000::1/128 (Atlanta's loopback1), directing traffic for this specific host to the next-hop IPv6 address 2012::1, which is presumed to be the directly connected interface of the Atlanta router.
This command configures a static host route on the New York router for the IPv6 address 2000::3/128 (Washington's loopback3), directing traffic for this specific host to the next-hop IPv6 address 2023::3, which is presumed to be the directly connected interface of the Washington router.
Configuring a static route with only an exit interface (e.g., s0/0/0) can work but is less precise and potentially problematic on multi-access segments; it doesn't specify the exact next-hop router.
The next-hop IP address 2012::2 would typically be an interface on the New York router itself, which is an invalid next-hop for a static route.
Similar to C, specifying only the exit interface (s0/0/1) for a host route is generally less specific than a next-hop IP and can be problematic depending on the network type.
Concept tested: IPv6 static host route configuration
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_cfg/configuration/xe-16/irc-xe-16-book/irc-ipv6-static-routes.html
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