Viewing a Device's Routing Table

For IPv6 routing table information, next hops are specified as link-local IP addresses. If the next hop's link-local address is also known to NetMRI, the address field appears as a hyperlink to the Device Viewer page for that device, enabling viewing of all link-local and global addresses for the next hop.

The Route Table page shows the routing information most recently retrieved from the device, including hyperlinks to corresponding interfaces and "next hop" devices. If the device supports IPv6, this table view also shows the current router's neighbors' link-local addresses as next hops in the table.

A column titled Network View lists the network view in which each of the device's local interfaces is participating. NetMRI hides this column by default. If a device's interface is not attached to a VRF interface, its data is routed through the global routing table for the device and lists the global network view used for that network.

Another column, VRF Name, lists the local virtual routing and forwarding (VRF) instance in the router to which the interface is bound, if any.

At the top of the Route Table page, the Routing Problems and Unreachables table provides a number of specific issue counts related to the device: No Route Discards, Routing Discards, ICMP Redirect Messages, ICMP Destination Unreachable Messages, ICMP Redirects Sent, and ICMP Time Exceeded Messages.

If the next hop for a device is the same as the destination address, for example, ip route 1.1.1.1 255.255.255.255 1.1.1.1, the route is not added to the Route Table.