[mosh-users] mosh and ipv6
Jeffry Handal
jhandal at lsu.edu
Fri Jul 12 14:57:29 EDT 2013
To Whom It May Concern,
Mosh is a great idea and piece of code. I use it on a daily basis to
re-establish connections on the fly. Any way, since we are big believers
of ipv6 at LSU, we have had a complete deployment of a dual stack
network for 4 years now. We are now beginning to start deploying ipv6
only networks. In one such network that we are testing, mosh did not
work. I believe it is because it does not work over ipv6 yet. This email
is to put a bug in your ear to hopefully steer you in that direction. We
would e happy to test the code once it supports ipv6.
Below is basic output of me trying to connection to the mosh server:
Try 1: only resolves for A records
UNI-2:~ uni$ mosh xxxxx at uni-tower.lsu.edu
<mailto:jhandal at uni-tower.lsu.edu> --ssh="ssh -p xxx"
/usr/bin/mosh: connect to host 192.16.176.140 port 443: No route to host
ssh_exchange_identification: Connection closed by remote host
/usr/bin/mosh: Did not find mosh server startup message.
Try 2: used ipv6 addresss
UNI-2:~ uni$ mosh xxxxx at 2620:105:b050:1900:21d:7dff:feb6:e848 --ssh="ssh
-p xxx"
/usr/bin/mosh: Could not resolve hostname
2620:105:b050:1900:21d:7dff:feb6:e848
ssh_exchange_identification: Connection closed by remote host
/usr/bin/mosh: Did not find remote IP address (is SSH ProxyCommand
disabled?).
Try 3: used ipv6 address with brackets
UNI-2:~ uni$ mosh xxxxx@[2620:105:b050:1900:21d:7dff:feb6:e848]
--ssh="ssh -p xxx"
/usr/bin/mosh: Could not resolve hostname
[2620:105:b050:1900:21d:7dff:feb6:e848]
ssh_exchange_identification: Connection closed by remote host
/usr/bin/mosh: Did not find remote IP address (is SSH ProxyCommand
disabled?).
UNI-2:~ uni$ ping6 2620:105:b050:1900:21d:7dff:feb6:e848
PING6(56=40+8+8 bytes) 2620:105:b00b:6808::100 -->
2620:105:b050:1900:21d:7dff:feb6:e848
16 bytes from 2620:105:b050:1900:21d:7dff:feb6:e848, icmp_seq=0 hlim=61
time=7.261 ms
16 bytes from 2620:105:b050:1900:21d:7dff:feb6:e848, icmp_seq=1 hlim=61
time=3.868 ms
^C
--- 2620:105:b050:1900:21d:7dff:feb6:e848 ping6 statistics ---
2 packets transmitted, 2 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 3.868/5.564/7.261/1.697 ms
Thanks for the help. Regards,
--
Jeffry J.Handal, SMIEEE, MSEE, PE
Manager, Network Engineering and Architecture
Univeristy Networking and Infrastructure
Louisiana State University
Office: (225)578-1966
Fax: (225)578-6400
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