2.20.1.28 ARP handling

Clients in the wireless network that are on standby do not reliably answer the ARP requests from other network stations. If "ARP handling" is activated, the access point takes over this task and answers the ARP requests on behalf of stations that are on standby. In large networks, this means more efficient use is made of the medium time because ARP queries and responses no longer have to be sent to the WLAN client, but are instead answered by the access point.

The LCOS LX access point determines the assignment between IP address and MAC address from the DHCP messages that are either exchanged between WLAN client and DHCP server or ARP requests of the connected WLAN clients are evaluated or ARP requests from the connected WLAN clients, so-called gratuitous ARP requests or ARP replies are evaluated. If the assignment is known, ARP requests are answered by the access point and no longer forwarded to the client.

Note: If the IP address/MAC address assignment could not be determined, ARP requests are still routed to the WLAN with the operating mode set to "On".

Important: If the IP address/MAC address assignment could not be determined, ARP requests are not routed to the WLAN with the operating mode set to "Strict". This means, for example, that no connection can be initiated from the LAN to WLAN clients with fixed IP addresses (no DHCP). In this case, this feature should not be employed.

SNMP ID:

2.20.1.28

Console path:

Setup > WLAN > Network

Possible values:

Off: ARP handling disabled. ARP requests are always routed to the WLAN.
On: ARP handling enabled. If the access point could not determine a mapping between IP address and MAC address, ARP requests are forwarded to the WLAN.
Strict: ARP handling enabled. If the access point could not determine a mapping between IP address and MAC address, ARP requests are not forwarded to the WLAN.

Default:

Off