Cabletron Systems CSX1000, CSX1200 manual IPX Spoofing Configuration Elements

USER’S GUIDE

b.Press 2 to select the system serialization packet handling level. The default values for all parameters will be displayed. Enter the Id of any parameters you need to change. Follow the onscreen instructions for changing the default values. Return to the IPX spoofing menu.

5.Press 4 to configure the message packet handling. A message packet handling menu will be displayed.

a.Press 1 to select the message packet handling configuration level. Follow the onscreen instructions to select either device level or system level. Return to the message packet handling menu.

b.Press 2 to select the system message packet handling level. The default values for all parameters will be displayed. Enter the Id of any parameters you need to change. Follow the onscreen instructions for changing the default values. Return to the IPX spoofing menu.

USING MANAGE MODE COMMANDS

ipxspoof

Allows you to configure system level spoofing data.

IPX SPOOFING CONFIGURATION ELEMENTS

CONFIGURATION LEVEL

Allows you to choose either device level or system level configuration for the following IPX elements:

•IPX watchdog spoofing

•SPX watchdog spoofing

•serial packet handling

•message packet handling

PACKET HANDLING METHOD

Available for Serial Packet Handling and Message Packet Handling. Allows you to select the system level method of handling packets. You may choose from the following packet handling methods:

•always discard

•forward only when connected

•always forward

IPX SPOOFING BACKGROUND INFORMATION

NetWare was designed for the LAN environment, and assumes that there is always available bandwidth. Because of this, NetWare protocols are not well suited to WANs. Special handling must be given to the NetWare protocols to prevent them from causing excessive ISDN connections. The special handling of NetWare protocols in a routing environment consists of spoofing and automatic filters.

Spoofing is a method to prohibit excessive ISDN connections. When a request packet is received that should be routed over the WAN, yet there is no connection up to the remote device, the spoofing process internally generates a desired response packet. The NetWare protocols that require spoofing are the Watchdog Protocol and the Sequence Packet Exchange (SPX) Protocol. Automatic filters are also used to prohibit excessive ISDN connections caused by the NetWare protocols.

286 CyberSWITCH