Dear all, On our office VLAN we see numerous (about 10 percent of all traffic on all switchports) NBNS "UNDEFINED" queries:
We also see normal NBNS queries for hostnames, wpad, etc. However we are unable to find any explanation for the "UNDEFINED" queries. Please can someone shed some light on this? Many thanks :) This question is marked "community wiki". asked 26 Oct '17, 01:14 markvdb edited 26 Oct '17, 02:52 grahamb ♦ |
Can you share a capture?
As a trace contains customer data, I prefer not to, but if you tell me what you're looking for (in the capture) I'll extract it or make a short trace. Thx!