66 | Chapter 3 - IPX Routing & Bridging |
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The IPX RIP protocol periodically sends out update information across a link. These periodic update packets will cause a VPN link set for
•If Triggered is selected with this
•If Periodic is selected with this
RIP Update Timer
This value dictates how often the device sends out IPX RIP (Routing Infor- mation Protocol) packets on the network segments 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 segments 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, devices 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.
This checkbox allows you to control the rebroadcasting of IPX type 20 packets on this interface. This is useful for
•If checked, then type 20 packets will not be propagated on this interface. The default is unchecked.