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New Member

redunancy static nat

Router A-----Leased line-----outside#Router B(NAT)#inside


|-----Leased line-----outside#Router C(NAT)#inside

i have two static nat router(cisco 7206) with same public&private ip address for redundancy and load balancing.(it is not connected with the ISP)

when i had tested it from outside, there was no problem.

but from inside with ftp,there are some problem.

connection was no problem but type the ls command no response from ftp server.

IOS version is 12.3.1a

i could not figure out it

surely i found some documentation for nat from cisco.

for example, stateful nat and nat with hsrp. but only it is for redundancy not for load balancing.

anybody help me ?

New Member

Re: redunancy static nat

Any update on this ?

New Member

Re: redunancy static nat

What is the gateway for the host inside network (RouterB/RouterC) ?

Are u using HSRP between Router B and C ?

Are u using any firewalling rules/packet filters in the routers / any firewall in the path?

Other than FTP, have u checked any other services ?

Have you checked without load-balancing / single link?

New Member

Re: redunancy static nat

surely i use the HSRP(router B is active and C is standby)

there is no any firewalling rules and firewall.

i had tested it with single link, for example, when by turns, had powered the Router B and C off,it worked well.

thank you