Proxy ARP configuration on S series switch

Latest reply: Apr 20, 2017 03:37:05 1166 1 0 0
Proxy ARP configuration on S series switch
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  • convention:

Created Apr 20, 2017 03:37:05 Helpful(0) Helpful(0)

An S series switch, except S1700, supports the following proxy ARP: routed proxy ARP, intra-VLAN proxy ARP, and inter-VLAN proxy ARP, which are configured using the arp-proxy enable, arp-proxy inner-sub-vlan-proxy enable, and arp-proxy inter-sub-vlan-proxy enable commands respectively.
Routed proxy ARP (available on all models in V2R5 and later versions, but unavailable on S275x and S5700LI in the versions earlier than V2R5)
The destination IP address in the received ARP request packet and the IP address of the inbound interface are in different subnets, but there is a route to the destination IP address and the outbound/inbound interfaces of the route are different. Routed proxy ARP takes effect in this situation. The switch uses its MAC address as the source MAC address to return ARP reply packets.
Intra-VLAN proxy ARP (available on all models in V2R5 and later versions, but unavailable on S275x and S5700LI in the versions earlier than V2R5)
If the destination IP address of the received ARP request packet and the IP address of the inbound interface are in the same subnet, intra-VLAN proxy ARP takes effect.
Inter-VLAN proxy ARP (unavailable on S1720, S2720, S275x, S5700LI and E series switches)
It is similar to intra-VLAN proxy ARP. Inter-VLAN proxy ARP takes effect only on super VLAN. If the destination IP address of the received ARP request packet and the IP address of the inbound interface are in the same subnet, inter-VLAN proxy ARP takes effect. If the source and destination are in the same VLAN, inter-VLAN proxy ARP is not required.
Regardless of which type of proxy ARP is used, the destination IP address of the received ARP request packet and the IP address of the inbound interface must be in the same subnet.
  • x
  • convention:

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