Chapter 7: Configuring the Protocols
Perle 833IS User Guide 127
■If the protocol on the Client PC does not need the MAC address at the time
the PC is started.
■If it is not important that the user always has the same MAC address.
■You can enter the MAC address in the user database for some users and use the
internal pool for the others.
The 833IS LAN adapter will see every MAC address that is present on the LAN. For
best performance, the Ethernet and Token Ring LAN adapters incorporate an
Address Filter. This filter will pass through only those addresses destined for the
833IS. All other addresses will be discarded in hardware.
When a user connects with Bridge Control Protocol (BCP) to the 833IS, the MAC
address is loaded into the Address Filter. If the user record does not contain a MAC
address, the next available free MAC address from the pool will be used.
To use the MAC address pool, it must be enabled within the LAN Feature Card
configuration. See “Configure the Ethernet LAN Interface” on page 77 and
“Configure the Token Ring LAN Interface” on page78.
The BCP screen is as follows:
Allow Client Specified Address
When checked, the Client Specified MAC Address will be used if available.
Usually, MAC Addresses are centrally administered, and it is recommended that the
Client Specified MAC Addresses are not allowed.
Protocol Filter This option can be used to independently filter out LAN broadcasts and multicast
frames so they are not passed on to the WAN client. With LLC2 protocol, no