User`s guide

Configuring the Pipeline as a Bridge
Introduction to Ascend bridging
Pipeline User’s Guide Preliminary January 30, 1998 5-3
Broadcast addresses and Dial Brdcast
A broadcast address is recognized by multiple nodes on a network. For example,
the Ethernet broadcast address at the physical level is:
FFFFFFFFFFFF
All devices on the same network receive all packets with that destination address.
As a router, the Pipeline discards broadcast packets. As a bridge, it forwards
packets with the broadcast destination address across all active sessions that have
bridging enabled, and initiates a session for all Connection profiles in which the
Dial Brdcast parameter is set to Yes.
Note:
ARP broadcast packets that contain an IP address in the bridge table are a
special case. For details, see “Static bridge-table entries” on page 5-8.
How bridged connections are established
Figure 5-1 show how station names and passwords sync a bridging connection.
Figure 5-1. Negotiating a bridge connection (PPP encapsulation)
The system name assigned to the Pipeline in the Name parameter of the System
Profile must be exactly the same device name specified in the Connection profile
on the remote bridge (the match is case sensitive). Similarly, the name assigned
WAN
Ethernet
Site B
Site A
Name=sitagw
Remote station=sitbgw
Bridging=yes
Send PW=*noknok*
Recv PW=*comein*
Name=sitbgw
Bridging=yes
Recv PW=*noknok*
Send PW=*comein*
Remote station=sitagw