SMC Networks Barricade SMC7004VWBR V.2 - Manual (Page 44)

Configuring the Wireless Barricade Router
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Dynamic IP
The Host Name is optional, but may be required by some ISPs.
The default MAC address is set to the WAN’s physical interface
on the Wireless Barricade. Use this address when registering for
Internet service, and do not change it unless required by your
ISP. If your ISP used the MAC address of an Ethernet card as an
identifier when first setting up your broadband account, only
connect the PC with the registered MAC address to the Wireless
Barricade and click the Clone MAC Address button. This will
replace the current Router MAC address with the already
registered Ethernet card MAC address.
If you are unsure of which PC was originally set up by the
broadband technician, call your ISP and request that they
register a new MAC address for your account. Register the
default MAC address of the Wireless Barricade.