07-07-2009 11:29 AM - edited 03-06-2019 06:37 AM
Hi
Why Like This?
access-list Mail-ACL-out extended permit tcp host 209.165.200.231 eq pop3 any
and Not Like This?
access-list Mail-ACL-out extended permit tcp host 209.165.200.231 any eq pop3
What's The Difference?
Thanks a Lot
07-07-2009 11:34 AM
Ali
access-list Mail-ACL-out extended permit tcp host 209.165.200.231 eq pop3 any
means allow the host/server 209.165.200.31 to send TCP packets with the source port of pop3 to any destination address on any address
access-list Mail-ACL-out extended permit tcp host 209.165.200.231 any eq pop3
means allow the host/server 209.165.200.31 to send TCP packets with a source port of any to any destination address with a destination port of pop3.
If 209.165.200.231 is your POP server then the first one is probably what you want.
Jon
07-07-2009 10:51 PM
Hi Ali,
The generalized format of tcp access-lists is the following:
permit | deny tcp (source address or address range) [source port or port range] (destination address or address range) [destination port or port range] [options]
Cheers:
Istvan
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