NAT

[ericdegboevi]

hi all,

I have a router with a static NAT configure as follow: ip nat inside source static X.X.X.X Y.Y.Y.Y

I have a secon ISP conneting to the same router and want to configure a redundant static nat in case the first ISP is down the second one takes over.

How can i go about it?

[ankbhasi]

Hi Eric,

Try this out and update if it works

interface s0

ip address

ip nat outside

!

interface s1

ip address

ip nat outside

!

interface ethernet1

ip address

ip nat inside

!

ip route 0.0.0.0 0.0.0.0 s0 90

ip route 0.0.0.0 0.0.0.0 s1 100

!

ip nat inside source list 1 route-map ISP1-map interface s0 overload

ip nat inside source list 1 route-map ISP2-map interface s1 overload

!

route-map ISP11-map permit 10

match interface s0

!

route-map ISP12-map permit 10

match interface s1

!

access-list 1 permit host X.X.X.X

HTH

Ankur

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