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block ras connection

hallo,

how can i block ras dhcp requests with acls

1 REPLY

Re: block ras connection

Hi,

You can use access-list (add to existing ACL or new) to block UDP 67 (source port) & 68 (destination port).

access-list 101 deny udp any any eq 67

access-list 101 deny udp any any eq 68

access-list 101 permit ip any any

Apply the above to the relevant interface.

Rgds,

AK

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