Forum Discussion
L4L7_53191
Mar 11, 2010Nimbostratus
Maybe this then (source: wikipedia). Somehow having the VIP in line affected this process somehow and the lookups were breaking? An interesting bit of data may be to re-enable it on the NIC, then dump that UDP 137 traffic and see what is going on exactly in Wireshark (if you've not arlready done this).
In order to start sessions or distribute datagrams, an application must register its NetBIOS name
using the name service. NetBIOS names are 16 bytes in length and vary based on the particular
implementation. Frequently, the 16th byte is used to designate a "type" similar to the use of
ports in TCP/IP. In NBT, the name service operates on UDP port 137 (TCP port 137 can also be used,
but it is rarely if ever used).
-Matt