2009年10月9日 · This example (I think John's answer points the the same thing at a different place), describes how to access another machine's UDP/DNS services over an TCP/SSH connection. We will forward local UDP/53 traffic to TCP, then TCP traffic with the port-forwarding mechanism of SSH to the other machine, then TCP to UDP/53 on the other end.

I tried it with several SSH connections from Windows to Unix and Unix to Unix and I don't get a single UDP packet on port 22. Also the server only listens on TCP. In this thesis they tried to implement UDP for SSH transport, but they also mention that the default only uses TCP: ". OpenSSH is using TCP consistently for all its network ...

2016年9月24日 · UDP comes back as open by nmap and I can use OpenVPN over UDP by specifying any random UDP port range. From my perspective, I am behind the firewall and so is the server I want to port forward to. I'm not really sure what type of firewall it is, but I know there are 3 routes from the external point to my internal router, so it could be anything ...

2021年4月18日 · I have a setup where I'm forwarding port 5000 to a remote server with ssh -NR 5000:localhost:5000 root@server This only forwards TCP packets through the SSH tunnel, Due to new software which is picky about using UDP, I need to forward UDP packets too. I have done some googling to see if this is possible and it appears its not.

2019年12月8日 · Using ssh -R 8080:localhost:8080 <myremoteserver> to ssh to my remote debian 9 as an example/test to forward my local little webserver (express and nodejs) remotely to be able to access it targeting the servers ip works just fine, but this was just for testing, as I need to forward a local gameserver (dolphins netpay) using UDP.

2016年4月22日 · SSH with its encryption and TCP traffic would slow things down -- working against the reason UDP was used for in the first place. The demand for UDP tunneling via SSH is so low (it may be because of the above) that, if implemented, the feature would be (first?) one of the bells and whistles.

2015年6月20日 · The function channel_decode_socks5 responsible for allowing "only" TCP and not UDP has not changed since then. This is the reason why UDP traffic will not pass a socks proxy opened by openSSH. If you really need UDP, you have several possibilities: a) use a VPN connection instead of SSH, e. g. openVPN. The simplest possibility in my eyes.

2022年8月19日 · It simply does the following using UDP hole punching technique: [Private] <--UDP-- [NAT] <--UDP-- [Public] You can achieve the same result with port forwarding at NAT level and UDP packets forwarding at the Public Server, though. In my case I have no access to NAT layer, so this tool came handy to receive an UDP traffic from Gstreamer.

2019年9月25日 · As an alternative to SSH port forwarding, you may forward those UDP packets to your local machine by using point-to-point tunnel devices, SSH and the procedure explained below. In the EC2 instance, do the following: In /etc/ssh/sshd_config file, set configuration parameter PermitTunnel to either point-to-point or yes.

2015年3月4日 · I don't know but I asked an ssh guru, they said ssh can forward udp, but only if it acts like a vpn, and there is a switch for it , he said it's -w but he said udp over tcp (perhaps by that he includes any attempt to forward udp with ssh), involves issues such as high latency, and retransmits of stuff you don't want anymore. I guess it's still ...