I'm setting up a network bridge on CentOS 6.4 and I'm not able to pass icmp or tcp traffic via eth1. UDP traffic looks fine. I'm sure that my test host is cabled to eth1 correctly. My config files look like the following and iptables are disabled.
I've done this dozens of times before without issues; I'm at a loss. What am I missing?
... net.ipv4.ip_forward = 1 net.ipv4.conf.proxy_arp = 1 ...
DEVICE=br0 TYPE=Bridge ONBOOT=YES BOOTPROTO=static IPADDR=192.168.20.254 NETMASK=255.255.255.0 GATEWAY=192.168.20.1 DNS1=192.168.100.80
DEVICE=eth0 TYPE=Ethernet NM_CONTROLLED=yes ONBOOT=yes BRIDGE=br0 HWADDR=00:0C:29:ED:C7:71
DEVICE=eth1 TYPE=Ethernet NM_CONTROLLED=yes ONBOOT=yes BRIDGE=br0 HWADDR=00:0C:29:ED:C7:7B