Now, ping

CentOS <-> guest and outside are OK

Outside <-> gest Fail

I am using bridge connection, I try to tcpdump

[root@centos vdsm]# brctl show
bridge name                bridge id                       STP enabled     interfaces
;vdsmdummy;             8000.000000000000       no
rhevm                         8000.005056ae45e5       no                   eth0
                                                                                            vnet0
[root@centos vdsm]# brctl showmacs rhevm
port no mac addr                is local?       ageing timer
2     fe:1a:4a:0c:14:41       yes                0.00
[root@centos vdsm]# ifconfig|grep HWaddr
eth0      Link encap:Ethernet  HWaddr 00:50:56:AE:45:E5
rhevm     Link encap:Ethernet  HWaddr 00:50:56:AE:45:E5
vnet0     Link encap:Ethernet  HWaddr FE:1A:4A:0C:14:41
[root@centos vdsm]# service iptables stop
[root@centos vdsm]# tcpdump

11:34:59.267379 ARP, Request who-has GUESTIP tell OUTSIDEPCIP, length 46
11:34:59.268017 ARP, Reply GUESTIP is-at 00:1a:4a:0c:14:41 (oui Unknown), length 28

I can see only arp working, how do I check this problem? and how vdsm convert from FE:1A:4A:0C:14:41 to guest mac 00:1a:4a:0c:14:41?

Thank you!

--
Regards,
John Xue