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