No. DNS uses UDP (or on some cases TCP). Protocol numbers for UDP and TCP are 17 and 6 respectively. You are denying protocols 53,55,77,103 so DNS will work as before.
Regards \\ Naman > -----Original Message----- > From: Alvaro Gordon-Escobar [mailto:[EMAIL PROTECTED] > Sent: Wednesday, July 23, 2003 7:15 AM > 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 --------------------------------------------------------------------------- ----------------------------------------------------------------------------
