I use an ssh-tunnel from a PC on a local network behind a gateway to
another PC on the internet. Say the PC behind the gateway is LOCAL
and the other internet PC is REMOTE.
On LOCAL I do as a regular user:
$ ssh -2 -N -f -R 2201:127.0.0.1:22 REMOTE
Then on REMOTE I can then do:
$ ssh -p 2201 127.0.0.1
All this works fine for login from REMOTE to LOCAL, bypassing the gateway.
I then want the following to work.
On REMOTE I do, as root:
# ifconfig lo0 alias 127.0.0.2
# ifconfig lo0
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
inet 127.0.0.1 netmask 0xff000000
inet 127.0.0.2 netmask 0xff000000
To double check, I verified that I can login to myself on REMOTE:
$ ssh REMOTE
On REMOTE I then want to login to LOCAL, as regular user:
$ ssh -p 2201 127.0.0.2
ssh: connect to host 127.0.0.2 port 2201: Connection refused
Can somebody explain to me why the ssh-tunnel does not work this way?
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