If you're using BIND, you can use the blackhole option. Todd
-- | -----Original Message----- | From: Alvaro Gordon-Escobar [mailto:[EMAIL PROTECTED] | Sent: Wednesday, July 23, 2003 10:15 AM | To: [EMAIL PROTECTED]; [EMAIL PROTECTED] | Subject: Cisco Workaround | | will this access list modification prevent my internal DNS server from | updates to it self from my telco's DNS server? | | access-list 101 deny 53 any any | access-list 101 deny 55 any any | access-list 101 deny 77 any any | access-list 101 deny 103 any any | !--- insert any other previously applied ACL entries here | !--- you must permit other protocols through to allow normal | !--- traffic -- previously defined permit lists will work | !--- or you may use the permit ip any any shown here | access-list 101 permit ip any any | | Thanks in advance | | ~alvaro Escobar | | ------------------------------------------------------------------------ -- | - | ------------------------------------------------------------------------ -- | -- | --------------------------------------------------------------------------- ----------------------------------------------------------------------------