How to remove Static NAT from cisco 3845

Unanswered Question
Jul 14th, 2012

Dear boss


I am using  cisco (C3845-ADVIPSERVICESK9-M), Version 12.4(11).  some static nat is configured. Now i want to remove all nat and configure again.

i am using router# clear ip nat translation *

                router (conf) # no ip nat .......... but no enty is beign delating.


How to detate all nat or single nat ????????


shahid

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Sandeep Choudhary Sun, 07/15/2012 - 02:07

To remove old NAT settings on Cisco router you need to


1)Clear all old NAT translations

router#clear ip nat translatiom *


2)Disable old NAT pool settings

router(config)#no ip nat pool public_access 200.100.10.33 netmask 255.255.255.252


3)And finally, disable the translation:

router(config)#no ip nat inside source list 1 pool public_access overload


From this point you can safely configure the new NAT settings.



or use this link:

http://www.phirebird.net/2009/07/cant-remove-ip-nat-entries-on-cisco-router-static-entry-in-use-cannot-remove/

http://www.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a0080094422.shtml

Cheers.

shahid_duet Sun, 07/15/2012 - 02:19

Mr. sandeep


My nat is: ip nat inside source static 0.0.0.0 0.0.0.0


i did  : router # no ip nat translation *

          router(conf) # no ip nat inside source static 0.0.0.0 0.0.0.0

          router ( conf-in)# no ip nat outside


but nat is not deleting.  i alos reboot the router.


Still nat exist. what can i do now ????


Shahid

shahid_duet Sun, 07/15/2012 - 02:26

mr. sandeep


yes. i deleted  ip nat inside or outside from all interface and tunnel


shahid

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