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Which TWO configuration steps are required to apply an IPv4 extended access list to an interface in Cisco IOS? (Choose TWO.)
An IPv4 extended ACL must first be defined using either the numbered `access-list` command or the named `ip access-list extended` command before it can be applied. Option B is correct because the `ip access-group` command is the only way to bind a configured ACL to an interface i…Read full explanation
A DMVPN Phase 2 network is configured with VRF-Lite. Spokes can communicate with the hub, but spoke-to-spoke traffic is not working. The engineer verifies that NHRP registrations are successful and that the spoke routers have the correct NHRP mappings for other spokes. Which is the most likely explanation?
In DMVPN Phase 2, spoke-to-spoke tunnels are created dynamically using NHRP. However, for spoke-to-spoke traffic to work, the spoke routers must have a route to the destination subnet via the tunnel interface. Additionally, the next-hop for the spoke-to-spoke route must be the sp…Read full explanation
A network engineer runs the following command to troubleshoot an EIGRP issue: R1# show ip eigrp topology 10.1.1.0/24 detail IP-EIGRP (AS 100): Topology entry for 10.1.1.0/24 State: Passive, Query origin flag: 1, 1 Successor(s), FD is 131072 Routing Descriptor Blocks: 10.1.2.2 (GigabitEthernet0/0), from 10.1.2.2, Send flag: 0x0 Composite metric: (131072/130816), Route is Internal Vector metric: Minimum bandwidth is 10000 Kbit Total delay is 100 microseconds Reliability is 255/255 Load is 1/255 Minimum MTU is 1500 Hop count is 1 Originating router: 10.1.2.2 External data: Not advertised Protocol: EIGRP Route tag: 0 Extended community: None What does this output indicate?
The output shows 'State: Passive', '1 Successor(s)', and 'FD is 131072' with a single routing descriptor block, indicating the route is stable and learned from one neighbor. 'Passive' in EIGRP means the route is not undergoing recomputation (not in Active state), and the presence…Read full explanation
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