What is NetBIOS? Does Windows need its ports 137 and 138 open?
NetBIOS over TCP/IP is specified by RFC 1001 and RFC 1002. The Netbt.sys driver is a kernel -mode component that supports the TDI interface. Services such as workstation and server use …
How are (NetBIOS?) names being resolved on my network?
2024年4月5日 · Generally NetBIOS is tied to SMBv1 being enabled; if SMBv1 is disabled at OS level, then NetBIOS features are not used at all. This is interesting, as I have SMBv1 disabled …
Solved: netbios-ns/udp traffic - Experts Exchange
2012年4月2日 · I have noticed a lot of traffic coming from one ip address to external ip addresses on netbios-ns/udp 137. These happen every few seconds from this paticular pc. Right now i …
networking - Difference between NetBIOS and SMB - Super User
3. What is the relationship between SMB and NetBIOS; are they seperate, does one rely upon the other? SMB does rely on NetBIOS for communication with devices that do not support direct …
Solved: 137/upd open|filtered netbios-ns | Experts Exchange
2017年5月26日 · Using nmap, the 10 that are found show: 137/upd open netbios-ns The 20 that are not found show: 137/upd open|filtered netbios-ns 1. I've check the firewall settings on …
Suspicious NetBios Name Service traffic - Super User
12:52:37.567533 IP (tos 0x0, ttl 128, id 17406, offset 0, flags [none], proto UDP (17), length 78) 192.168.0.2.netbios-ns > 192.168.0.255.netbios-ns: [udp sum ok] >>> NBT UDP …
NetBIOS packet probing (port 137). Does it come from the router?
2016年4月27日 · DST Port 137 (NetBIOS) packets coming from router's IP. Does the router have some weird "extras" with NetBIOS, or is it an outsider? Invalid unsolicited packets with !!??!! …
Solved: Netbios-NS packet capture - Experts Exchange
2011年2月16日 · Anyway, you can try to simply disable NetBIOS on that network card / network connection (if its VPN or whatnot). Simply go to the network card / network connection, go to …
Blocking Netbios traffic at router level (Cisco)
2005年9月8日 · What I would like is an explanation of how to configure our Cisco routers to block the Netbios traffic being generated from this server but not block all Netbios traffic. To assist, …
Why would a Windows machine scan for port 137? - Super User
2018年3月21日 · The port 137 can be utilized by TCP or UDP. In this case, the "nbname" is used for the Name Service, name broadcasts for building browsing lists. 3 ports will be used in this …