The Symantec Messaging Gateway appliance becomes unreachable from within the network. This occurs if both network interfaces have been configured and connected to the network, and the cable is unplugged from the "eth0" interface.
This is an expected behavior of the Linux kernel's IP routing features, when IP addresses are on the same subnet and assigned to both network interfaces. The Linux kernel automatically creates two separate routes for each interface on the same subnet.
This is an expected behavior for the Messaging Gateway appliances.
Messaging Gateway appliance
Both network cards are configured and plugged into the network
Both network interface IP addresses are on the same subnet.
Imported Document ID: TECH171607
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Symantec Messaging Gateway Machine Access Control (MAC) address is sending ARP queries or responses for Internet Protocol (IP) addresses other than what is assigned to the physical Network Interface Card (NIC).
Last Updated August 02, 2012
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