I installed a new CentOS-6.3 kvm guest on a recently provisioned kvm host also running CentOS-6.3. This guest will not connect to the network and the host cannot connect to it via its public IP address. I had previously installed a guest system on thst same kvm host using the same ISO and that system connects to the network without problem.
I next created a third guest isntance and this too does not connect with either the kvm host or the gateway. I have installed litterally dozens of kvm guests this past year and I have never encountered this situation. Has anyone else? Does anyone have any idea what might be going on?
ip addr 1: lo <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 52:54:00:a0:26:47 brd ff:ff:ff:ff:ff:ff inet 216.185.71.243/24 brd 216.185.71.255 scope global eth0 inet6 fe80::5054:ff:fea0:2647/64 scope link vaslid_lft forever preferred_lft forever
ip route 216.185.71.0/24 dev eth0 proto kernel scope link scr 216.185.71.243 169.254.0.0/16 dev eth0 scope link metric 1002 default via 216.185.71.1 dev eth0
netstat -r Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 216.185.71.0 * 255.255.255.0 U 0 0 0 eth0 link-local * 255.255.0.0 U 0 0 0 eth0 default 216.185.71.1 0.0.0.0 UG 0 0 0 eth0
service iptables stop . . .
ping 216.185.71.1 PING 216.185.71.1 (216.185.71.1) 56(84) bytes of data.
From 216.185.71.243 icmp_seq=2 Destination Host Unreachable From 216.185.71.243 icmp_seq=3 Destination Host Unreachable From 216.185.71.243 icmp_seq=4 Destination Host Unreachable
^C