Hi all,
Hope I got the right place, I find this forum structure very confusing. Anyway. Situation is this:
I have a dual-stack network using router advertisments, putting all systems on the 2001:388:d000:1100::/64 IPv6 subnet.
No firewalls are enabled on any of the systems within the network (any firewalling is being done at the border router).
VMWare Server 2.0 runs on an AMD64 desktop atop Gentoo Linux. Hostname: beast.redhatters.yi.org, IPs: 192.168.64.32 and 2001:388:d000:1100:6ef0:49ff:feef:847c.
Two VMWare guests run atop the server:
- training3.redhatters.yi.org, IPs: 192.168.64.33 and 2001:388:d000:1100:6ef0:49ff:feef:847c/64 running Windows 2003 Server
- metermaster.redhatters.yi.org, IPs: 192.168.64.35 and 2001:388:d000:1100:6ef0:49ff:feef:847c running Ubuntu 10.04 LTS
Other systems on the same network:
- My P4 laptop, vk4mslp2.redhatters.yi.org, IPs: 192.168.64.38 and 2001:388:d000:1100:208:dff:fe5c:851, running Gentoo
- My netbook, zhouman.redhatters.yi.org, IPs: 192.168.64.36 and 2001:388:d000:1100:223:8bff:fe35:6f71, running Gentoo
I am using bridged networking, connecting the guests to the same physical LAN as the host and other systems.
The guests are able to talk to every other IPv6 capable host without issues. The Ubuntu VM frequently connects to the local Ubuntu mirror (on AARnet) via IPv6 when downloading updates, no problems there. Windows 2003 can also be accessed using RDP via IPv6 (using portproxy on the Windows guest) from either of the laptop or the netbook. e.g.
zhouman ~ # netstat -anlp | grep rdesktop
tcp6 0 0 2001:388:d000:110:37329 2001:388:d000:1100:3389 ESTABLISHED 17978/rdesktop
The guests however will not communicate with the host, nor vice versa, via IPv6. Via v4, everything is rosy, everything works. But when communicating between the host and guests, IPv6 traffic just stalls:
stuartl@beast ~ $ ssh -4 root@metermaster
Linux metermaster 2.6.32-28-generic-pae #55-Ubuntu SMP Mon Jan 10 22:34:08 UTC 2011 i686 GNU/Linux
Ubuntu 10.04.2 LTS
Welcome to Ubuntu!
* Documentation: https://help.ubuntu.com/
0 packages can be updated.
0 updates are security updates.
Last login: Thu Feb 24 04:44:37 2011 from beast.local
root@metermaster:~# logout
Connection to metermaster closed.
stuartl@beast ~ $ ssh -6 root@metermaster
ssh: connect to host metermaster port 22: Connection timed out
Yet it works elsewhere:
stuartl@beast ~ $ ssh -6 zhouman
Last login: Thu Feb 24 13:46:17 EST 2011 on : 0
KeyChain 2.6.8; http://www.gentoo.org/proj/en/keychain/
Copyright 2002-2004 Gentoo Foundation; Distributed under the GPL
* Found existing ssh-agent (1628)
* Found existing gpg-agent (1656)
* Known ssh key: /home/stuartl/.ssh/id_dsa
stuartl@zhouman ~ $ ssh -6 root@metermaster
The authenticity of host 'metermaster (2001:388:d000:1100:20c:29ff:fee0:c5b8)' can't be established.
RSA key fingerprint is f6:d6:4a:90:2a:a8:5e:a3:7a:b1:7c:ba:ea:71:5e:11.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'metermaster,2001:388:d000:1100:20c:29ff:fee0:c5b8' (RSA) to the list of known hosts.
Linux metermaster 2.6.32-28-generic-pae #55-Ubuntu SMP Mon Jan 10 22:34:08 UTC 2011 i686 GNU/Linux
Ubuntu 10.04.2 LTS
Welcome to Ubuntu!
* Documentation: https://help.ubuntu.com/
0 packages can be updated.
0 updates are security updates.
Last login: Thu Feb 24 04:57:24 2011 from beast.local
root@metermaster:~#
Has anyone struck this before and have any ideas what might be causing this? It's getting a little irritating having to force IPv4 all the time.