NAT networking drops out after a few days' uptime

[dimitris]

Both host and guest are Ubuntu Lucid servers, guest additions are up-to-date, guest uses a virtio adapter with NAT networking.

2-3 days after starting the guest, it loses connectivity to the outside world. These are the last few entries in its log:

31:39:39.715 NAT: adding domain name lan to search list
31:39:39.715 NAT: DHCP offered IP address 10.0.2.15
42:40:55.746 NAT: adding domain name lan to search list
42:40:55.746 NAT: DHCP offered IP address 10.0.2.15
51:08:57.554 NAT: error occurred while sending ICMP error message

The guest is running Logitech's Squeezebox Server, a perl-based music server. Ports for that have been forwarded (see machine XML) and traffic flows normally before the machine drops out.

log and machine XML to be attached.

[dimitris]

terminal server view after controlvm reset