Ipx Operation Over Wan Links - Novell NETWARE 6-DOCUMENTATION Manual

IPX Operation over WAN Links

24
Internetwork Packet Exchange
For packets to travel between two IPX network segments separated by a
WAN, there must be a connection between the two routers representing each
segment. This connection is represented by the WAN call destination , a
unique name that identifies the router on the other end of the connection.
A WAN connection can be initiated by any of the following methods:
Automatic —Established between the local router and the call
destination when IPX is bound to a WAN port. Automatic connections are
established typically at router startup.
Manual —Established between the local router and the call destination
by a user from the Call Manager utility (CALLMGR).
Data-initiated —Established when the local router needs to send data to
the (remote) router represented by the WAN call destination. This
connection method is characteristic of on-demand calls, which are
described in the following section.
After a WAN connection is established, the routers use the IPXWAN protocol
to negotiate the values or states of various connection characteristics, such as
speed, throughput, routing type, and IPX header compression. These and other
characteristics are negotiated before the routers exchange any routing
information or data.
For more information about IPX operation over WAN links, refer to
"Call Types" on page 25
"Routing Types" on page 27
"Static Routes and Services" on page 28
"Watchdog Packet Spoofing" on page 30
"Header Compression" on page 31