10-01-2009 10:36 AM - edited 03-04-2019 06:13 AM
Hi,
we had a NAT router deployed on our network for insdide server to access from outside
To have hardware redunancy we planned to deploy the HSRP between the existing and the new router
but i heard that HSRP and NAT will not work together so i refered some cisco document and its says we can configure HSRP with static NAT
when i tried in my router there is no command as same
Cisco commands:
interface BVI10
ip address 192.168.5.54 255.255.255.255.0
no ip redirects
ip nat inside
standby 10 priority 105 preempt
standby 10 name HSRP1
standby 10 ip 192.168.5.30
standby 10 track Ethernet2/1
!
!
ip default-gateway 10.0.18.126
when i try on my router its says invalid input
RTR_GSL2-2(config)#$de source static 192.168.5.33 3.3.3.5 redundancy HSRP1
ip nat inside source static 192.168.5.33 3.3.3.5 redundancy HSRP1
^
% Invalid input detected at '^' marker.
can anyone suggest
router A :
System image file is "flash:c3640-i-mz.122-46a.bin"
IOS (tm) 3600 Software (C3640-I-M), Version 12.2(46a), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2007 by cisco Systems, Inc.
Router B:
System image file is "flash:c3640-is-mz.122-5.bin"
IOS (tm) 3600 Software (C3640-IS-M), Version 12.2(5), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2001 by cisco Systems, Inc.
10-01-2009 12:22 PM
Hello Vinoth,
I see the two routers have different IOS images.
is the command supported on the one with the newer image?.
In release 12.4 (but I don't know if you can install it on your C3640) there is stateful NAT that is more advanced feature available now.
With stateful NAT the two devices keep an updated NAT translation table so that if second router has to take active role it is ready to process current flows.
the feature you are trying to use is older and should miss this capability to exchange state information.
for stateful NAT see
http://www.cisco.com/en/US/products/ps6640/products_white_paper09186a0080118b04.shtml
Hope to help
Giuseppe
10-07-2009 05:32 AM
Thanks for your reply
I have upgraded the IOS and configured the NAT with the HSRP
everything looks fine and also standby state but
when i connect with the LIVE the NAT which i applied to the Secondary IP of the outside interface working fine
but not the NAT deployed to the Primary IP
can u suggest us any issue config
when i try to check the arp entry in the backbone router its shows the different mac ID
and also when i roll back the config without the HSRP its working fine
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