Quick Reference Guide

Reference Guide for the Model RM356 Modem Router
Filter Configuration 8-5
Table 8-4. TCP/IP Filter Rule Menu Fields
Field Description
Active In this field, you can make the filter rule active (Yes) or make the filter rule inactive (No).
IP Protocol Protocol refers to the IP-specific protocol number. The value entered in this field should
be a decimal number between 0 and 255 (for example, 17 refers to the UDP protocol).
Refer to RFC1700,
Assigned Numbers
, for specific protocol numbers.
IP Source Route Yes or No in this field determines whether to check the source route.
Destination:
IP Addr In this field, enter the destination IP address of the packet you want to filter. The
address is written in dotted-decimal notation such as a.b.c.d where a, b, c, and d are
numbers between 0 and 255.
IP Mask In this field, enter the IP subnet mask that is used to mask the bits of the IP Address
g
iven in Destination: IP Addr. See “Netmask” on pa
g
e 1-8 for information about IP
subnet masks.
Port # In this field, enter the destination port of the packets that you want to filter. The ran
g
e of
this field is 0 to 65535. For example, 47 refers to the FTP port. Refer to RFC1700,
Assigned Numbers
, for specific port numbers.
Port # Comp In this field, select the comparison quantifier you want to enable to compare to the value
g
iven in Destination: Port #. There are five options for this field:
• None (default)
•Less
• Greater
• Equal
• Not Equal
Source:
IP Addr In this field, enter the source IP address of the packet you want to filter. The IP address
is written in dotted-decimal notation such as a.b.c.d where a, b, c, and d are numbers
between 0 and 255.
IP Mask In this field, enter the IP subnet mask that is used to mask the bits of the IP Address
g
iven in Source: IP Addr.
Port # In this field, enter the source port of the packets that you want to filter. The ran
g
e of this
field is 0 to 65535.
Port # Comp In this field, select the comparison quantifier you want to use to compare to the value
g
iven in Source: Port #. There are five options for this field:
• None (Default)
•Less
• Greater
• Equal
• Not Equal