Allowing NetBIOS over SSLVPN will reduce the number of problems associated with Microsoft workgroup/domain networks, as the SonicWall security appliances will forward all NetBIOS-Over-IP packets sent to the local LAN subnet's broadcast address coming from the SSL tunnel. Microsoft networking, unless explicitly configured otherwise, is heavily
Re: NetBios Over VPN In order to reach a workstation through WINS name resolution there has to be a WINS server shared on both networks workgroups if you will. NetBIOS over TCP is a feature that is enabled on the actual network settings on the PC and not on the firewall. Restricting Client VPN access using Layer 3 firewall rules Troubleshooting Client VPN Home > Security and SD-WAN > Client VPN > Resolving NetBIOS names over Client VPN This item is sold as a complete and easy VPN, however it is somewhat misleading as the Netgear Insight VPN does not do NETBIOS over VPN. This needs to be impletmented ASAP This has apparently been requested before and has not happened, looking at the box, it does not advise anywhere that this is not possible and this is a basic requiement of the VPN. Mar 02, 2020 · NetBIOS doesn't exist anymore. The name resolution process you're referring to happens via broadcast, and that dies with VPN or any other router based process. There is only way to handle this, properly configured DNS. Don't have a DNS server? Over VPN clients do not seem to be using their DNS search suffix list. When attempting to ping a netbios name, the client appends it's own domain name to the lookup. The dns server responds that there no such name. The client then does nothing. From inside the LAN this works totally different. Client appends it's own domain.
this is (slightly) off-topic as your vpn is working (you can connect using the IP). Whether Netbios works (or any other protocol) is a different matter. Try changing your netbios setup on the VPN server so that it announces the right workgroup over the tun interface (Samba REMOTE ANNOUNCE config option, IIRC). cheers, JJk
Apr 16, 2018 The problem with NetBIOS - TechRepublic The issue is the apparent requirement that we open NetBIOS ports through the SSL VPN device so SMS can communicate with its client-side agents. Repeated discussions with Microsoft haven’t turned NETBIOS over VPN - NETGEAR Communities
Apr 16, 2018 · Click the WINS tab, and then click Disable NetBIOS over TCP/IP. You can also disable NetBIOS over TCP/IP by using a DHCP server with Microsoft vendor-specific option code 1, ("Disable NetBIOS over TCP/IP"). Setting this option to a value of 2 disables NBT. For more information about using this method, refer to the DHCP Server Help file in Windows.
Allowing NetBIOS over SSLVPN will reduce the number of problems associated with Microsoft workgroup/domain networks, as the SonicWall security appliances will forward all NetBIOS-Over-IP packets sent to the local LAN subnet's broadcast address coming from the SSL tunnel. Microsoft networking, unless explicitly configured otherwise, is heavily dependent upon local LAN broadcast messages; normally, edge security appliances such as routers, firewalls, or VPN security appliances discard these Disabling the use and support of NetBIOS can help to mitigate an attacker’s ability to: poison and spoof responses, obtain a user’s hashed credentials, inspect web traffic, etc. It’s important to point out that NetBIOS itself is an API, not a networking protocol. However, in modern networks, NetBIOS runs over TCP/IP via the NBT protocol.