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ASA 5510 - Network Address Changed some connections locked out

Currently our Colo changed our Network Address and I had to update our ASA 5510 with the new IP Address and Gateway IP. I'm not familiar with the Cisco ASA 5510. I was able to figure out how to change these items. Under Device Setup, I went to the Interfaces and edited the prexisting IP Address with the new one and applied the change. Then I expanded "Routing" and selected "Static Routes" and edited the Gateway IP. None of the other setting were changed from the previous setup and now I'm unable to access the internet from the inside network and machines outside that need to access a web console behind the firewall cannot be accessed.

Is there another setting I'm missing? Please Help!!!


Thanks for your time!!!

Cisco Employee

These Steps should help you:

These Steps should help you:-

1) Verify the External IP address on the Internet facing Interface

2) Verify the Default Gateway and next hop IP

3) Ping Next Hop and Any Internet IP from the ASA device using PING command(ping <ip address>)

4) Check the Outbound NAT on the ASA device.

   For 8.2 and below:-

   nat (inside) 1 0 0

   global (outside) 1 interface

    For 8.3 and above:-

    object network obj-any

     subnet 0 0

     nat (inside,outside) dynamic interface

NOTE:- This can vary as per your requirement.

5) If all the above steps are good , post this output from the ASA device:-

packet input inside tcp <Any Internal IP> 3456 80 det

NOTE:- I assume Inside as your Internal Subnet interface and outside as  your interface facing interface.

Thanks and Regards,

Vibhor Amrodia



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