I need to create an access list on a cisco 2501 to allow SMTP connection
to one host (111.111.111.1) and block it from another (111.111.111.2).
Please help ... need to block spammers. I have installed exim 2.04
to prevent relaying on 111.111.111.1. Do I need to specify a default
option to handle cases that are not matched by the following - I will
allow all other traffic for now.
I tried the following:
access-list 101 deny tcp 0.0.0.0 255.255.255.255 111.111.111.2 0.0.0.0
eq 25
access-list 101 permit tcp 0.0.0.0 255.255.255.255 111.111.111.1 0.0.0.0
eq 25
access-list 101 permit ip 0.0.0.0 255.255.255.255 111.111.111.0
0.0.0.255
When I tried to save the above I got an error on the cisco - "unable to
find domain server 255.255.255.255".
Regards
Imran.
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