We have recently migrated our server from server 2003 DHCP to server 2008 R2 DHCP, there have been no issues however I am monitoring my firewall an I am noticing that computers from a certain zone are trying to use a netbios port. which is blocked and this is filling up the firewall logs
The Ports the clients are trying to use are 137, 138. The scope options that are configured are:
003 - Router
006 - DNS Server
015 - DNS server name
044 - Wins
046 - Wins Node type
Any thought why just these nodes are trying to use these ports and the clients in the other scopes are not?