Compatible Systems 5.4 - Manual (Page 65)

Chapter 3 - IPX Routing & Bridging 59
if it exists. If it doesn’t discover a number in use, the device will wait
indefinitely until a number is set by another router on the segment.
• Auto-Seed means the device will listen for an IPX network number
being set by another router (including Novell software routers residing
on servers) on the segment connected to this interface and use this
number if it exists. If it doesn’t discover a number in use, the device will
auto-generate a valid number using its routing tables.
• Off means the device will neither listen for, nor send packets with this
frame type on this interface.
> Network Number (per Frame Type)
This is an eight-digit hexadecimal number that uniquely identifies the
network segment connected to this interface. Values range from 1 to
FFFFFFFE.
v Note: Accidental selection of an IPX network number which is already in
use on another network segment may cause hard-to-diagnose problems. You
should carefully track which IPX network numbers are in use, and where they
are used.
RIP Update Timer
This value dictates how often the device sends out IPX RIP (Routing Infor-
mation Protocol) packets on the network segment attached to this interface.
The RIP packets sent out on this interface contain information about networks
for which this device is responsible. RIP packets received tell the device
about other networks and routers. The default is 60 seconds.
SAP Update Timer
This value dictates how often the device sends out IPX SAP (Service Access
Protocol) packets on the network segment attached to this interface. The SAP
packets sent out on this interface contain information about services (such as
servers, printers, etc.) for which this device is responsible. SAP packets
received tell this device about services available on other network segments.
The default is 60 seconds.
Block IPX Type 20 Output Packets
In order for some protocols, notably NetBIOS, to function in the NetWare
environment, routers must propagate a certain type of broadcast packet
throughout an IPX internetwork. IPX packet type 20 is designated to perform
broadcast propagation for these protocols.
When an IPX device receives a type 20 packet, it rebroadcasts it out all inter-
faces, except the one on which it was received. The IPX network number of
the originating interface is included in the rebroadcast packets.