[Xen-devel] Networking problem in guest domains
Starting with changesets 8707 in my daily testing, I've been unable to
access guest domains via SSH or telnet.
When I access the guest domains via 'xm console', I am able to
ascertain that networking is up on them; I ping external machines, mount NFS
share, etc. However, I cannot ssh into them from external machines, or even
This is happening on all machines, SLES 9 SP2, RHEL 4, and FC3/4 based machines,
both x86 and x86_64.
Trying to SSH into guest domain from external machine:
dyn95341161:~ # ssh lamb5-vm1
No response or comeback from login.
Guest domains accessed via 'xm console'. You can see NFS mount and ping
lamb5-vm1:~ # df -T
Filesystem Type 1K-blocks Used Available Use% Mounted on
/dev/sda6 ext3 19307400 3155892 15170744 18% /
tmpfs tmpfs 114024 0 114024 0% /dev/shm
devpts devpts 19307400 3155892 15170744 18% /dev/pts
nfs 206429688 80941920 115001656 42% /skyline
lamb5-vm1:~ # ping 188.8.131.52
PING 184.108.40.206 (220.127.116.11) 56(84) bytes of data.
64 bytes from 18.104.22.168: icmp_seq=1 ttl=63 time=0.452 ms
64 bytes from 22.214.171.124: icmp_seq=2 ttl=63 time=1.15 ms
All services are up on the guest domains. I tried to telnet into the guest
domain, and the following
[root@thinkcentre-dom0 xen-unstable.hg]# telnet 126.96.36.199
Connected to thinkcentre-domU-009053041223.austin.ibm.com (188.8.131.52).
Escape character is '^]'.
telnetd: All network ports in use.
Connection closed by foreign host.
Has anyone else seen this problem?
David F Barrera
Linux Technology Center
Systems and Technology Group, IBM
"The wisest men follow their own direction. "
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