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IOS Command t open DNS Port 53

Posted on 2007-11-30
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Last Modified: 2012-05-05
What are the commands to open up port 53 (dns) on a 1600 Cisco Router.
I have a dns server at a remote location that this router needs to allow DNS To traverse back and forth.
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Question by:networklogic1705
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Jan Springer earned 500 total points
ID: 20384071
access-list NNN permit tcp <remote.dns.ip> any eq 53
access-list NNN permit tcp <remote.dns.ip> eq 53 any
access-list NNN permit udp <remote.dns.ip> any eq 53
access-list NNN permit udp <remote.dns.ip> eq 53 any

The lines with port 53 at the end presume that you run your own DNS server.  If not, remove them.
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by:Computer101
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Forced accept.

Computer101
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