×
INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

port forwarding on 2600 router

port forwarding on 2600 router

port forwarding on 2600 router

(OP)
Hi,

does anyone know what would cause a port forward not to work from a nat'd ip. I am simply putting a statement such as

"ip nat inside source static tcp <internal ip> 1234 <external public nat'd ip> 1234 extendable"

When i do a show ip nat translation I see the port being forwarded as a different port to the internal ip address.

any help is much appreciated. Thanks.

RE: port forwarding on 2600 router

can you please post your results here so we can see..

and also config :D

technically it shouldn't be happening..
also you dont need the extendable command there unless you are creating multiple nats to the same global/or local address..

http://www.cisco.com/en/US/technologies/tk648/tk36...

We must go always forward, not backward
always up, not down and always twirling twirling towards infinity.

RE: port forwarding on 2600 router

(OP)
The below is what i'm getting:

tcp <correct 1 public nat'd ip>:9619 <correct internal ip>:5678 <correct destination public ip>:32885 <same destination public ip as previous ip in this line>:32885
tcp <correct 1 public nat'd ip>:9620 <correct internal ip>:5678 <correct destination public ip>:32885 <same destination public ip as previous ip in this line>:32885
tcp <correct 1 public nat'd ip>:9621 <correct internal ip>:5678 <correct destination public ip>:32885 <same destination public ip as previous ip in this line>:32885
tcp <correct 1 public nat'd ip>:9623 <correct internal ip>:5678 <correct destination public ip>:32885 <same destination public ip as previous ip in this line>:32885
tcp <correct 1 public nat'd ip>:9625 <correct internal ip>:5678 <correct destination public ip>:33005 <same destination public ip as previous ip in this line>:33005
tcp <correct 1 public nat'd ip>:9626 <correct internal ip>:5678 <correct destination public ip>:33005 <same destination public ip as previous ip in this line>:33005
tcp <correct 1 public nat'd ip>:9627 <correct internal ip>:5678 <correct destination public ip>:33005 <same destination public ip as previous ip in this line>:33005

RE: port forwarding on 2600 router

ip nat inside source tcp x.x.x.x 1234 int (outside interface) overload

not extendable...overload

ip access-list extended IP-Options-and-Powerball
deny ip any any winning-powerball-ticket
permit ip any any option any-options
!
class-map ACL-Options-and-Powerball
match access-group name IP-Options-and-Powerball
!
policy-map CoPP-POLICY
class ACL-Options-and-Powerball
drop
!
control-plane
service-policy input CoPP-POLICY

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members!

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close