Hi all!
I'm kinda baffled by this one:
I use NetSaint to check hosts and routers in one of our networks. This
network is somewhat complex, with several remote sites connected with
the main office.
I'm running kernel 2.4.14 on RedHat 7.2 and the routing table looks like
this:
Kernel IP routing table
Destination Gateway Genmask Flags
Metric Ref Use Iface
11.11.12.0 192.X.X.253 255.255.255.0 UG 0 0
0 eth0
11.11.13.0 192.X.X.250 255.255.255.0 UG 0
0 0 eth0
11.11.15.0 192.X.X.250 255.255.255.0 UG 0
0 0 eth0
11.11.11.0 192.X.X.253 255.255.255.0 UG 0
0 0 eth0
192.X.X.0 * 255.255.255.0 U
0 0 0 eth0
11.11.17.0 192.X.X.252 255.255.255.0 UG 0
0 0 eth0
127.0.0.0 * 255.0.0.0
U 0 0 0 lo
default 192.X.X.254 0.0.0.0 UG
0 0 0 eth0
The problem is that when one of the routers goes down, say 11.11.13.1,
its route gets dropped by the kernel after some time and it doesn't come
back up when the router does. Netstat -ra shows the correct entry in the
routing table, but traceroute ignores it until I restart the network
service.
FWIW, using routes to hosts rather than to networks doesn't solve the
problem.
Is this behaviour by design or I screwed up somewhere?
TIA
Henry
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