Exec summary: How can I tunnel ssh over ssh ? The relay doesn't use a priv port
Full details:
I have a number of machines on a home network connected via an ISP which
offers only a single DHCP address. The idea is to use PPP over SSH to generate
a VPN, by giving the client machine a capability to run pppd (email me
privately if you've done something similar and can offer any advice).
However, in the meantime I'm using ssh for serious traffic and NAT for the
rest.
I have made a two line tweak to ssh (version 1) to allow a port number to be
included in the host name, and having set up a relay from port 12345 on the
DHCP host to port 22 on the hidden host, and can connect straight through from
the internet. However, the connection from the DHCP host is not a `low
numbered' port, so I have to type a password due to:
RhostsRsa authentication not available for connections from unprivileged port
What I'd like to do is to be able to tell `ssh -L 12345:$host:22' to tell the
sshd on $host that the local src port used for the connection to port 22 has
to be priv. Can this be done?
I assume channel_input_port_open in newchannels.c would actually do it, and I
see no conditional code in there :-(
Can it be done, or is there an alternative way to do it ?
