[fedora-virt] Networking failure on F12

[Adam Huffman]

I've setup a Windows 7 guest on a new F12 box.  Initially, it was
fine.  However, a couple of times now the guest's networking has been
lost and it has allocate itself a 169.254. address.  When I tried
installing a Centos 5.4 guest for comparison, that wasn't able to pick
up an IP via DHCP either.

Here are the current iptables rules:

*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A INPUT -s 192.168.122.0/24 -m tcp -p tcp --dport 445 -j ACCEPT
-A INPUT -s 192.168.122.0/24 -i vnet0 -m udp -p udp --dport 137:139 -j ACCEPT
-A INPUT -s 192.168.122.0/24 -i vnet0 -m tcp -p tcp --dport 137:139 -j ACCEPT
-I FORWARD -m physdev --physdev-is-bridged -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT

dnsmasq is running.


Adam