030-300505 Rev. A
65
April 2007
User Guide
VersaLink Wireless Gateway (Model 327W)
Protocol Mode
Description
Bridge
A bridge is a layer 2 device that connects two segments of
the same LAN that use the same protocol such as Ethernet.
The modem does not have a WAN IP address in this mode.
The client PC will typically get an IP address from a DHCP
server in the network or the IP address can be assigned to
the client PC statically.
Routed Bridge
Routed Bridged Encapsulation (RBE) is the process by
which a bridged segment is terminated on a routed
interface. Specifically, the Router is routing on an IEEE
802.3 or Ethernet header carried over RFC 1483 bridged
ATM. RBE was developed to address the known RFC1483
bridging issues, including broadcast storms and security.
The modem will get a WAN IP address through DHCP or
can be assigned statically. NAT will use the global address
assigned to the modem.
Bridge
Proxy Bridge
Proxy Bridge is the process in which the modem acts as a
proxy ARP agent for a local public subnet. The modem will
be assigned an IP address from within that public subnet.
The modem will direct all traffic to a Router, which is
configured statically. The Router’s address must not reside
within Router’s assigned public subnet. All traffic will be
sent via the Router’s MAC address. The LAN may also
have a private NAT'ed network. NAT will use the global
address assigned to the modem.
To configure the Router’s Bridge settings, follow these steps at the
VC 1 Configuration
screen:
1.
Select
Bridge
in
the
Protocol
drop-down menu.
2.
Select the desired Bridge mode from
Bridge Mode
drop-down menu.
3.
Enter the desired values in the fields provided (if requested).
4.
Click
Apply
to save your settings.
5.
Click
OK
in the pop-up screen to reset the Router.
