Problem ip route

Unanswered Question
Mar 4th, 2009
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I have the next configuration in router R1


Router R1:

----------

inte fas0/1

ip address 172.20.10.202 255.255.255.248


int fas 0/0

ip address 172.17.240.1 255.255.255.0


ip route 0.0.0.0 0.0.0.0 fas0/1


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Router r1 connect with other router r2, i don't have the configuration of router r2.


I can do ping to r2 172.20.10.201 in router r2, since router r1, but pc in net 172.17.240.0/24 can't do ping to r2 172.20.10.201


The connection is:

pc-----fe0/0-r1-fe0/1------r2


I need to do any configuration additional in r1

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Edison Ortiz Wed, 03/04/2009 - 06:50
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No, you don't need any additional configuration on Router 1.


Router 1 has a default route towards R2. All packets from Router 1 will go to R2.

The problem is R2 does not have any routing information back to R1.


ip route 172.17.240.0 255.255.255.0 172.20.10.202 on R2 will fix the problem.


HTH,


__


Edison.

Jon Marshall Wed, 03/04/2009 - 06:52
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"I need to do any configuration additional in r1"


No, you need a route added to R2 for 172.17.240.0/24 pointing back to R1.


Or you could use NAT if you can't access R2 ie. On R1


int fa0/0

ip nat inside


int fa0/1

ip nat outside


access-list 101 permit ip 172.17.240.0 0.0.0.255 host 172.20.10.202


ip nat inside source list 101 interface fa0/1 overload


Jon

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