port blocking cisco 1605

Oct 18, 2006 3 Replies

i'm having a brain lapse.. whats the command for blocking external port access (135-139) on a cisco 1605 router?



Insert the following deny udp any any range 135 139 deny tcp any any range 135 139 in the access-list you're using to filter incomming traffic.

It depends on the IOS you are using. If you use one of the latest, something like

no deny udp any any range 135 139 no deny tcp any any range 135 139

should work. As a general hint, it is a good practice to only permit those you are expecting and deny all other.

Michael

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