ospf? routing issues

variable · Tue May 24, 2005 10:33 pm

I currently have ospf setup on a network that looks like this:

..............................internet
..................................|
..................................|(internet ips)
.............................[main router]
.........(10.1.50.1/24)/...............\(10.1.100.1/24)
............................/..................\
........................../......................\
..(10.50.1.70/24)/.........................\(10.1.100.25/24)
...................[router].................[router]
.....................|(10.2.3.1/24)..........|(10.2.2.1/24)
.....................|.............................|
.....................|.............................|
............[rest of network*A]......[rest of network*B]

everything can ping everything except--> nothing can ping net*B(with the exception of the router's interface of 10.2.2.1/23)(but net*B can use the internet and everything)

how can this be? if netB can see all, why cant all see netB?

any ideas would be greatly appreciated

variable · Tue May 24, 2005 10:44 pm

i made sure to set the network to be accepted and all that too.

mip · Tue May 24, 2005 11:02 pm

chack out al of your routing tables. You can easy find the problem, if you see what your routers think about your network topology. The try to log each ospf link, and find who does not talking to its neighb.

variable · Tue May 24, 2005 11:23 pm

i checked them out many times now, i cant find the problem

here is the routing tables:

router main:

# DST-ADDRESS G GATEWAY DISTANCE INTERFACE
0 S 0.0.0.0/0 r 208.48.32.193 1 ext
1 DC 208.48.32.192/26 r 0.0.0.0 0 ext
2 Do 10.2.3.0/24 r 10.1.50.70 110 core
3 Do 10.2.2.0/24 r 10.1.100.25 110 iswan
4 Io 10.1.100.0/24 110
5 DC 10.1.100.0/24 r 0.0.0.0 0 iswan
6 Io 10.1.50.0/24 110
7 DC 10.1.50.0/24 r 0.0.0.0 0 core

router for net b:

# DST-ADDRESS G GATEWAY DISTANCE INTERFACE
0 Do 0.0.0.0/0 r 10.1.100.1 110 ether1
1 Do 208.48.32.192/26 r 10.1.100.1 110 ether1
2 Do 10.2.3.0/24 r 10.1.100.1 110 ether1
3 Io 10.2.2.0/24 110
4 DC 10.2.2.0/24 r 0.0.0.0 0 ether2
5 Io 10.1.100.0/24 110
6 DC 10.1.100.0/24 r 0.0.0.0 0 ether1
7 Do 10.1.50.0/24 r 10.1.100.1 110 ether1

router for net a:

# DST-ADDRESS G GATEWAY DISTANCE INTERFACE
0 Do 0.0.0.0/0 r 10.1.50.1 110 ether2
1 Do 208.48.32.192/26 r 10.1.50.1 110 ether2
2 Io 10.2.3.0/24 110
3 DC 10.2.3.0/24 r 0.0.0.0 0 ether1
4 Do 10.2.2.0/24 r 10.1.50.1 110 ether2
5 Do 10.1.100.0/24 r 10.1.50.1 110 ether2
6 Io 10.1.50.0/24 110
7 DC 10.1.50.0/24 r 0.0.0.0 0 ether2

everything looks correct to me