Question

Routing help, Efficient 5861, Cisco 3640, 5 Static IPs

Asked by: Frog357

I have a routing loop between 2 routers, I'm trying to push a subnet with 5 ips to a Efficient 5861 DSL router.
I have the following:

[Router A] is our core router (cisco 3640).
[Router B] is cisco 3640 being used for our DSL router.
[5861] is a test unit (efficient 5861 dsl router).

Through radius I am assinging an IP to the router of:
xx.51.154.127
Tested, ping works this ip is fine, tracert also shows good.

I am trying to send the subnet of:
xx.51.155.8 with 255.255.255.248 netmask to the lan of the [5861]


The [5861]'s lan ip is: xx.51.155.9/255.255.255.248
In [Router B] a default route of 0.0.0.0 -> [Router A]
In [Router A] a route of xx.51.155.8 255.255.255.248 xx.51.154.127  <-- send subnet to this ip
In [Router A] a default router of 0.0.0.0 -> [Internet]


I'm thinking [Router B] needs something like a route command .  When I tracert to the lan IP there is a router loop between [A] and [B].  The tracert does not make it to [5861].

It looks like this:
[me]->[internet]->[Router A]->[Router B]->[Router A]->[Router B]->[Router A]->etc.

Thanks for any help you can provide!

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Asked On
2005-02-14 at 08:48:03ID21313973
Tags

router

Topic

Internet Service Providers (ISP)

Participating Experts
1
Points
500
Comments
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Answers

 

by: meverestPosted on 2005-02-14 at 14:33:50ID: 13309071

Hi,

your logic appears good, apparently the 'router B' does not know that he has a local network of xx.51.155.8/29 and is forwarding back to the default route - check the routing table on that device to make sure that the LAN adressing is correct.

paste the results here if you like.

cheers.

 

by: Frog357Posted on 2005-02-14 at 16:05:38ID: 13309662

Your answer placed me in the proper mind set to discover my own problem.
Our problem was that we were trying to include that 127 ip which didn't need to be involved.
In radius I changed the profile to the information for the subnet I wanted, I assigned .9 to the router and connected and things looked better.
Then in my [Router A] I changed the route from:
In [Router A] a route of xx.51.155.8 255.255.255.248 xx.51.154.127  <-- send subnet to this ip
to:
In [Router A] a route of xx.51.155.8 255.255.255.248 [Router B primary IP]  <-- send subnet to this ip

On [Router B] once the DSL router established connection it showed the proper routing table like I expected.
Thanks greatly for your assistance!

20120131-EE-VQP-002

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