Multipal routing configration

Unanswered Question
Apr 16th, 2010

I have a router 1801, adsl port configured with one ISP, and Fastethernet0 port is configured with another ISP provider. So I want to configured like if adsl (ISP) not working then traffic pass through fastethernet0 (ISP)

I made commands:

ip route 0.0.0.0 0.0.0.0 Dialer0
ip route 0.0.0.0 0.0.0.0 FastEthernet0 10

ip nat inside source list 1 interface Dialer0 overload
!        
access-list 1 remark INSIDE_IF=Vlan1
access-list 1 remark SDM_ACL Category=2
access-list 1 permit 192.168.2.0 0.0.0.255
dialer-list 1 protocol ip permit

But the traffic is not passing on Fastethernet0. Anyone can help me please. I also attached txt file

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Lei Tian Fri, 04/16/2010 - 16:15

Hi,

You want to use adsl link as  the primary path and the ethernet0 as backup, correct? Base on your configuraion, I think your NAT configure might cause problem. When your primary adsl link fail, the dialer wont have IP anymore hence the PAT wont work.

HTH,
Lei Tian

Jon Marshall Sat, 04/24/2010 - 02:09

nadeem704 wrote:

So how can I correct the nat issue, Can explain please.

Just add another NAT statement for fa0 ie.

ip nat inside source list 1 intefrace fa0 overload

Jon

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