HP-UX Routing Services Administrator's Guide HP-UX 11i v2, HP-UX 11i v3 (B2355-91153, November 2011)

Perform one of the following actions:
• If the route was learned over RIP, use /usr/sbin/ripquery to query the first-hop router
for the route. That router may claim to have heard the route from another router.
• If the first-hop router is another host running gated, have that host’s gated dump its routing
table to find out where it learned about the route.
You may have to repeat this process several times to track down the original source of the route.
If you expect the route to go through a different router, turn on gated tracing. The tracing tells
you which routers are advertising this route and the values attached to those routes.
Problem 4: gated does not add routes that you think it must.
Tracking down this problem is similar to the previous problem (“Problem 3: gated adds routes that
appear to be incorrect.” (page 52)). You expect one or more routers to advertise the route. Turn
on gated tracing to verify that gated is receiving packets of the type of routing protocol you
expect. If these packets do not contain a route you expect to be there, trace packets on the router
you expect to advertise the route.
Troubleshooting gated 53