https://bugzilla.mindrot.org/show_bug.cgi?id=1941
Bug #: 1941
Summary: ssh -6 prevents ipv4 forwarding
Classification: Unclassified
Product: Portable OpenSSH
Version: 5.8p1
Platform: ix86
OS/Version: Linux
Status: NEW
Severity: minor
Priority: P2
Component: ssh
AssignedTo: [email protected]
ReportedBy: [email protected]
when I use either of
ssh -CX -L 10443:172.20.0.1:443 <hostname>
ssh -4CX -L 10443:172.20.0.1:443 <hostname>
where <hostname> has both a functioning A and AAAA record, I can
connect and use the port forward. However, if I use:
ssh -6CX -L 10443:172.20.0.1:443 <hostname>
I can't connect to the tunnel because seemingly the -6 prevents use of
an IPv4 address in any context.
I had imagined the -4 and -6 were there to dictate what way ssh
connects only. Apparently that was a misreading on my part but it
would be preferable to be able to separate the preference for an
IPv4/v6 ssh connection from the IP version used in any forwarded
connections.
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