05-10-2006 07:14 AM - edited 03-05-2019 11:53 AM
I have a lan set up with a dmz for a webserver.
My external router is a cisco 3600 and the internal is a cisco 2600.
I am attempting to apply an access list but each time I apply it I end up blocking everything. Is anyone able to tell me where I am going wrong, please?
My acl:
access list (name/number) incoming on internal
permit tcp any 172.16.32.0 0.0.0.255 established
permit tcp any 172.16.32.0 0.0.0.255 5050
permit tcp any 172.16.32.0 0.0.0.255 5100
permit tcp any 172.16.32.0 0.0.0.255 5101
permit tcp any 172.16.32.0 0.0.0.255 1863
permit tcp any 172.16.32.0 0.0.0.255 110
permit tcp any 172.16.32.0 0.0.0.255 25
permit tcp any 172.16.32.0 0.0.0.255 80
permit tcp any 172.16.32.0 0.0.0.255 range 6881-6969
permit tcp any 172.16.32.0 0.0.0.255 6346
permit tcp any 172.16.32.0 0.0.0.255 1366
permit tcp any 172.16.32.0 0.0.0.255 5190
permit tcp any 172.16.32.0 0.0.0.255 1080
permit tcp any 172.16.32.0 0.0.0.255 1366
permit tcp any 172.16.32.0 0.0.0.255 1367
permit tcp any 172.16.32.0 0.0.0.255 5190
deny any any
05-10-2006 07:27 AM
Hello,
are you sure the destination address is in the range 172.16.32.0/24?
What means "everything" is blocked? How do you test this? Can you add
permit icmp any 172.16.32.0 0.0.0.255
above the "deny any any" command and ping the server?
Regards, Martin
05-10-2006 09:11 AM
Looking at the access list I would think it was more likely built as an outbound access list: especially the use of tcp established (more often out than in) and the fact that destination addresses are specified. But this line in the original post makes me wonder if it is applied as inbound:
access list (name/number) incoming on internal
Perhaps the original poster can clarify on which interface and in which direction the access list is applied. In fact it would be helpful if the original poster can post the entire configuration of the interface.
HTH
Rick
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