Can ping to router, but not thru...

[MattWray]

I have a new Frame Leg that we just brought up. They are experiencing a strange problem, at least strange to me.
I can ping to Site A's router, both interfaces, but not to the LAN beyond. There are no access lists in place...
Not sure where to go from here...

Thanks,

Matt Wray
MCSE, MCSA, MCP, CCNA

http://www.sss-steel.com

http://www.total-tec.com

 

[eurobadger]

Hi Matt

You will be able to ping the interfaces across the router as long as they are physically and logically 'up', ie with active networks attached. However you can only ping between the hosts if there is some routing between the networks on those interfaces. Turn on RIP, as an example, and delare the networks.

EB

 

[MattWray]

I have RIP on and the directly attached networks entered. LEt me give some more info.
3 sites in question.
Site A is HQ, Site B is the unreachable network, and Site C is the new leg.
A tracert from a client at site C shows it hit their gateway, hop to the router here(which it should), then hit the external interface at Site B, but not go beyond.
We have another router here, which is the Internet router, and it has ACLs. But in my mind, which isn't a good place to be, their traffic should not hit that router since all 3 other routers are within the frame...

Thanks,

Matt Wray
MCSE, MCSA, MCP, CCNA

http://www.sss-steel.com

http://www.total-tec.com

 

[MattWray]

Update,
Looking at the routing table of the new router, it doesn't look like it is learning routes. The only routes it shows are the directly connected networks...
It has RIPv2. and I think the other router only has RIPv1.
Is this a problem and how do I correct it?

Thanks,

Matt Wray
MCSE, MCSA, MCP, CCNA

http://www.sss-steel.com

http://www.total-tec.com

 

[eurobadger]

Matt

You can select the version of RIP you want your routers to use. If the IOS on the original one only has version 1, then set the new one to that, or vice versa:

Conf t
router rip
version 2
ctrl-z

There may be an issue with subnets, as version 1 only supports classful routing

EB

 

[MattWray]

Is there any way to have it support both RIPv1 and v2?

Thanks,

Matt Wray
MCSE, MCSA, MCP, CCNA

http://www.sss-steel.com

http://www.total-tec.com

 

[MattWray]

Well, changed to RIPv1 and received the routing tables, but still unable to ping thru. This is very puzzling, someone please come up with something to check!


Thanks,

Matt Wray
MCSE, MCSA, MCP, CCNA

http://www.sss-steel.com

http://www.total-tec.com

 

[MattWray]

Got it. Turned out to be something with the Unix box was messed up. Helps if you try and ping more than one host on the other side!

Thanks,

Matt Wray
MCSE, MCSA, MCP, CCNA

http://www.sss-steel.com

http://www.total-tec.com