Mailing List Archive

https://bugzilla.mindrot.org/show_bug.cgi?id=3161

--- Comment #1 from Owen DeLong <owen@delong.com> ---
For purposes of complete information, yes, the following sequence does
work as expected:
ssh '[2001:db8:f3f4::2ae0]' # ssh to jump host
ssh 'fe80::2001:db8:3%enp0s31f6' # executed on jump host

However, it is worth noting that the parser does not handle the
following correctly:
ssh '[fe80::2001:db8:3%enp0s31f6]'
and reports:
ssh: Could not resolve hostname [fe80::2001:db8:3%enp0s31f6]: Name or
service not known


It appears that there's a bug in the IPv6 address parser being used
which does not handle addresses contained in brackets that also have
zone ids specified (e.g. %enp0s31f6).

However, for jump, the following doesn't work either:
kiev:owen (170) ~ % ssh -J '[2001:db8:f3f4::2ae0]'
'fe80::2001:db8:3%enp0s31f6'
2020/05/06 22:53:36
channel 0: open failed: connect failed: open failed
stdio forwarding failed
ssh_exchange_identification: Connection closed by remote host


I have anonymized all fo the addresses in this report by using example
prefix in place of actual addresses. Any inconsistencies in the
addresses are typographical errors during manual editing for
anonymization. The anonymized addresses are properly:
Jump Host (Fedora 31): 2001:db8:f3f4::2ae0
Link Local of iMac: fe80::2001:db8:3
GUA of iMac (not mentioned, likely not relevant) 2001:db8:f3f4::3

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