MENU SELECTION | DESCRIPTION |
|
SRC MASK | The IP mask associated with the | |
| Source Address in | hexadecimal |
| format. Left blank if ALL source | |
| addresses are forwarded. | |
DEST ADDR | The destination address of IP packets | |
| to be filtered. A network address, | |
| individual IP address or ALL may be | |
| specified. |
|
DEST MASK | The IP mask associated with the | |
| Destination Address in | hexadecimal |
| format. Left blank if ALL destination | |
| addresses are specified. |
|
PROT | Indicated the protocol this entry will | |
| filter on e.g. ANY, TCP ONLY, UDP | |
| ONLY, ICMP ONLY |
|
S.PRT | The Source Port that this entry will | |
| Filter on. |
|
D.PRT | The Destination Port that this entry | |
| will filter on. |
|
RSLT |
|
|
4.7.3 IPX SAP FILTER MENU (WAN or Ethernet)
SAP (Service Advertising Protocol) is used on Novell™ networks to inform workstations and file servers of what services the network can offer. The IPX SAP filter only operates when the IPX mode is set to route.
The Router maintains an internal table of known services. It receives SAP updates on either port and broadcasts the information to the other port. The filter allows selected information to be ignored on receipt and hence not stored in the SAP filter table. If a SAP update is not in the table it will be dropped and propagated to the other port.
A filter table is available for each port. Each table has 16 entries and is searched sequentially until a match is found. Each line can be set to pass or fail.
A SAP entry contains six elements, but the filter can only act on the following three; Service TYPE, Socket Address (FROM SKT, TO SKT) and SERVER NAME.
The following fields are ignored:
Network Address (32 bits)
Echo LANlink Router Option User Manual | Issue 1.0 04 December 1997 Page 38 of 59 |