Which command allows you to view the IPv6 equivalent of an ARP table?

Which command allows you to view the IPv6 equivalent of an ARP table?

• A. show ipv6 routes
• B. show ipv6 interfaces
• C. show ipv6 neighbor
• D. show ipv6 statistics

Answer: (C)

The command that allows you to view the IPv6 equivalent of an ARP table is "show ipv6 neighbor." In IPv4 networks, the Address Resolution Protocol (ARP) is used to map IP addresses to MAC addresses. For IPv6, this functionality is handled by the Neighbor Discovery Protocol (NDP), which is similar to ARP but tailored for the IPv6 environment. When you use the "show ipv6 neighbor" command, it displays a list of IPv6 devices that your router or interface has discovered on the local network, along with their corresponding link-layer (MAC) addresses. This information helps in understanding the relationship between IPv6 addresses and their associated hardware addresses, facilitating communication within the subnet. The other commands listed do not serve this purpose. The command to view IPv6 routes provides routing table information, "show ipv6 interfaces" displays interface-level details, and "show ipv6 statistics" gives statistics about IPv6 traffic, but none of these commands give insights into the mapping of IPv6 addresses to their MAC addresses, which is the focus of the neighbor table.

The command that allows you to view the IPv6 equivalent of an ARP table is "show ipv6 neighbor." In IPv4 networks, the Address Resolution Protocol (ARP) is used to map IP addresses to MAC addresses. For IPv6, this functionality is handled by the Neighbor Discovery Protocol (NDP), which is similar to ARP but tailored for the IPv6 environment.

When you use the "show ipv6 neighbor" command, it displays a list of IPv6 devices that your router or interface has discovered on the local network, along with their corresponding link-layer (MAC) addresses. This information helps in understanding the relationship between IPv6 addresses and their associated hardware addresses, facilitating communication within the subnet.

The other commands listed do not serve this purpose. The command to view IPv6 routes provides routing table information, "show ipv6 interfaces" displays interface-level details, and "show ipv6 statistics" gives statistics about IPv6 traffic, but none of these commands give insights into the mapping of IPv6 addresses to their MAC addresses, which is the focus of the neighbor table.