PAT locking to external addresses
Might sound silly...
I thought that I would apply just an ACL to the NAT rule, but the guy said no.
Attempt to lock this:
IP nat inside source static tcp 192.168.3.10 3389 interface GigabitEthernet0/0 3389
Down to only authorized external addresses (for obvious reasons)
Been a long day, so maybe lack just what is obvious.
If you care to traffic out, then you need not to apply any access-list and it would all go out.
However, you can configure ACL allowing only 192.168.3.0/24 go outbound and apply it on gig0/0 on the outbound direction and exit. Use a unique number of the ACL (174 is OK) 175 has been used for the NAT statement.
Tags: Cisco Security
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