Routing problem !

Sep 02, 2007 4 Replies
Y

Hi,



I've three sites inter-connected by MPLS and running GRE tunnel between them. Only site A has internet connection, i.e. site B & C connect to internet via router A. Now when site B & C connected to internet, the packet stopped at site A internal interface (10.10.2.1). Can anyone tell me is there specific configuration on site A internal interface to allow site B & C access internet via router A and what's missing in below configuration ?



Internet | (202100.20.x) Router A (10.10.2.x) | ISP router | | Router B Router C (10.10.3.x) (10.10.4.x)



Router A Interface s0/0 ip address 200.100.20.2 255.255.255.252 ip nat outside



Interface f0/0 ip address 10.10.2.1 255.255.255.252 ip nat inside ip route 0.0.0.0 0.0.0.0 200.100.20.1 ip nat inside source list NATIP interface S0/0 overload



ip access-list extended NATIP permit ip 10.0.0.0 0.255.255.255 any



Router B Interface f0/0 ip address 10.10.3.2 255.255.255.252 ip route 0.0.0.0 0.0.0.0 10.10.3.1



Router C Interface f0/0 ip address 10.10.4.2 255.255.255.252 ip route 0.0.0.0 0.0.0.0 10.10.4.1



thanks



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C

Add B and C LAN subnets on Router A: ip route x.x.x.x x.x.x.x 10.10.2.2

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Y

Hi,

I'm running eigrp protocol between 3 routers and able to see the B & C subnet on router A. so it doesn't need to add a static route for subnets. any other ideas ?

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M

Could it be because the packets from router B and C are not arriving on router A interface f 0/0 but that they are arriving on GRE tunnel interfaces on router A for which there is no ip nat inside ....

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