On Mon, 2004-06-14 at 04:57, Bassam A. Al-Khaffaf wrote: > Hi Guys, > > I am trying to DNAT the netbios broadcast traffic > (03:00:00:00:00:01) over IEEE 802.2 ethernet. So is there any number > for this protocol so I can use it with my iptables rule? > > > > Note: I am asking for netbios protocol over IEEE 802.2 ethernet and > not over Ethernet II > > > > For example: > > > > iptables ât nat âA PREROUTING -i eth1 âp netbios âj DNAT > âto-destination 192.168.1.231 > <snip> NetBIOS generally uses three different protocols: NetBIOS datagram service - 138 /udp - most data transmission NetBIOS name service - 137 /udp - probably what you need for registration NetBIOS session service - 139 /tcp - I'm not sure what uses session oriented NetBIOS As I mentioned in response to your previous post, I generally try to avoid the use of NetBIOS broadcasts and far prefer a name server approach on both routed and bridged networks. -- John A. Sullivan III Chief Technology Officer Nexus Management +1 207-985-7880 john.sullivan@xxxxxxxxxxxxx --- If you are interested in helping to develop a GPL enterprise class VPN/Firewall/Security device management console, please visit http://iscs.sourceforge.net