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New Member

design for two routers with NAT and 4 ISP connection

Here is my setup

two Cisco 3825 with 4 ethernet connection.

4 ISP connection

Router 1  -  ISP1 and ISP 2

Router 2  -  ISP3 and ISP 4

I will be using NAT and HRSP on both routers.

I'm having problem with NAT and I was wondering if anybody know

which NAT or PAT design I should be using?

4 REPLIES
VIP Purple

Re: design for two routers with NAT and 4 ISP connection

For each internet-connection you need one route-map that matches the traffic that should be natted and the outgoing interface. Here is an example for dynamic outgoing PAT:

ip nat inside source route-map NAT interface GigabitEthernet0/0 overload

ip nat inside source route-map NAT-VDSL interface Dialer0 overload

route-map NAT permit 10

  match ip address NAT

  match interface GigabitEthernet0/0

route-map NAT-VDSL permit 10

  match ip address NAT-VDSL

  match interface Dialer0

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Don't stop after you've improved your network! Improve the world by lending money to the working poor: http://www.kiva.org/invitedby/karsteni
New Member

Re: design for two routers with NAT and 4 ISP connection

Hi

Please go through this thread.

https://supportforums.cisco.com/message/767009

Regards

Bharat

New Member

Re: design for two routers with NAT and 4 ISP connection

Should i be using a loopback address?

New Member

Re: design for two routers with NAT and 4 ISP connection

what about IP route? and default route?

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