Numerous how-tos all over the Internet show how one would set up a tunnel using ssh, e.g.: ssh -f -o Tunnel=ethernet <server_ip> true I was wondering if there's a way to subsequently acquire the names of the local and remote tun/tap interfaces (e.g., using the default "-w any:any") for subsequent automatic tunnel configuration, e.g.: ip link set $TapDev up ip link set $TapDev master <client-or-server-side-bridge> Most examples out there pick something silly like "-w 5:5" then proceed to configure the hard-coded "tap5" on both client and server. However, that's unreliable -- what if "tap5" is already in use on the server, and we have to pick something else? What if I want to set up a server to accept multiple connections from random clients in random order? Ideally, I'd start ssh-based "tunnel client" and "tunnel server" services at boot, and having to pick names manually, then manually configure everything on both ends is quite limiting. I tried starting the client with "-vvv" hoping the verbose debugging output would include some grep-able hint as to what interface names were picked, but couldn't see anything useful. Any clue much appreciated! Thanks, --Gabriel _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
