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New Member

PBR and port redirection

What does the first line of below acl does for proxy redirect? I hope  it denies all traffic except 80 and redirects 80 traffic to proxy ip?

access-list 111 deny   tcp any any neq www
access-list 111 deny   tcp host any

access-list 111 permit tcp any any is my proxy ip.

This config works for me. But at times, we are not able to access some https sites..For eg, redirects to, but it doesnt work all the time.

- Ribin

Super Bronze

Re: PBR and port redirection

You are right, if the ACL is applied to the proxy redirection ACL, it does mean what you posted earlier.

Basically, the acl says:

line 1: deny all TCP traffic whose port is not equal to www (port 80)

line 2: deny all TCP traffic from the proxy server

line 3: permit all TCP outbound traffic

Since line 1 already deny all TCP ports but port 80, line 3 essentially means permit TCP/80.

So in summary, redirect all TCP/80 traffic except traffic from the proxy serve itself. Everything else will not be redirected.