The vRouter transfers IPv4 packets between vBridges. The vRouter supports routing, ARP learning, and ARP aging functions. The following outlines the functions.
- Routing function When an IP address is registered with a virtual interface of the vRouter, the default routing information for that interface is registered. It is also possible to statically register routing information for a virtual interface.
- ARP learning function The vRouter associates a destination IP address, MAC address and a virtual interface, based on an ARP request to its host or a reply packet for an ARP request, and maintains this information in an ARP table prepared for each routing domain. The registered ARP entry is retained until the aging timer, described later, times out. The vRouter transmits an ARP request on an individual aging timer basis and deletes the associated entry from the ARP table if no reply is returned. For static ARP learning, you can register ARP entry information manually. *DHCP relay agent function The vRouter also provides the DHCP relay agent function.
