ADTRAN 1200350L1 user manual PPP Profile/Bridge, Bridge/Mode, PPP Profile/PPP, PPP/VJ Compression

Models: 1200350L1

1 134
Download 134 pages 2.52 Kb
Page 76
Image 76
PPP Profile/Bridge

Chapter 4: Configuration Overview

The Type 20 IPX packet is used specifically for this purpose. This causes special handling of this packet by the Router Option Module. When a router receives this type of packet, it rebroadcasts it across all interfaces except the one it is received on and includes the net- work number of that interface in the data portion of the packet.

The IPX Router Specification from Novell notes that Type 20 packets should not be propagated across slower links with bandwidths of less than 1 Mbps (like ISDN). However, when set to Pass (def), the Router Option Module will allow these packets to propagate over the WAN connection. This facilitates dial-on-demand applications. When set to Block, all Type 20 packets are not propagated across the WAN connection.

PPP Profile/Bridge

The Bridge menu contains the parameters needed for exchanging bridged packets with the PPP peer.

Bridge/Mode

Write security: 3; Read security: 5

When set to On (def), the Router Option Module will attempt to ne- gotiate PPP BCP with the PPP peer. Bridging can be used even in route mode only if the PPP peer cannot support certain PPP proto- cols for that particular routing protocol. See Bridge/WAN IP Bridge and Bridge/WAN IPX Bridge on page page 4-14 for further details.

PPP Profile/PPP

The Router Option Module supports the IETF standards for the Point-to-Point Protocol. The PPP state machine running in the Rout- er Option Module can be fine-tuned to support many applications that can be employed. The configurable items under this menu can be changed from their default values for special cases.

PPP/VJ Compression

Write security: 3; Read security: 5

When set to On, the Router Option Module will perform TCP/IP header compression known as Van Jacobson compression to the

PPPpeer. Normally, this is not necessary over ISDN connections. Set to Off (def) to disable it.

4-40

Router Option Module User Manual

61200350L1-1

Page 76
Image 76
ADTRAN 1200350L1 user manual PPP Profile/Bridge, Bridge/Mode, PPP Profile/PPP, PPP/VJ Compression