Chapter 4 - MultiFRAD Software
Changing IPX Parameters
The IPX Setup dialog box controls the four frame types, the WAN ports setup, and the advanced tab enables IPX routing, auto learn of Ethernet network numbers, and the distributed name of the MultiFRAD.
In IPX based networks using Ethernet, LAN segments can support the use of four different Ethernet frame formats over the same physical link (provided each frame type has a unique network address as a virtual port).
NetBIOS, when enabled, enables the transport of Novell encapsulated NetBIOS packets on the specified virtual IPX port. Refer to Novell documentation regarding NetBIOS operation over NetWare based LANs. The Hops text box defines the distance, in hops, for the routing of Novell encapsulated NetBIOS frames on the specified virtual IPX port, and the recommended value is 8.
For most applications, the RIP and SAP default timers should not have to be changed. Under certain circumstances, disabling IPX and SPX Watchdog Spoofing in the Bandwidth Optimization group has proven effective.
Periodic RIP (Routing Information Protocol) refers to broadcasts transmitted from the RIP virtual IPX port at a given frequency so all MultiFRADs on the internetwork maintain consistent routing tables. Increasing the frequency of RIP broadcasts can consume excessive bandwidth, especially on low- speed WAN links. Sixty seconds is the recommended interval between RIP broadcasts.
Periodic SAP (Service Advertisement Protocol) is used in IPX based networks to allow servers (application servers, file servers, print servers, communication servers, etc.) to advertise their presence on the internetwork. MultiFRADs use these advertisements to build up tables listing the servers so they can then advertise these servers on the local segments and provide MultiFRADs to the server. Client workstations can request a list of these servers from the MultiFRAD.
Discard Serialization Packets, when enabled (checked), causes the IPX MultiFRAD to discard Novell NetWare File Server serialization security frames received from the specified virtual IPX port. Novell NetWare File Servers implement broadcast frames, often referred to as security frames, that contain serialization information regarding the license of the file server executable. This feature permits filtering of these broadcasts to help reduce WAN traffic and is not intended to interfere with copyright protection mechanisms. This feature is automatically turned on when
43
