ZyXEL Communications P-324 manual 166

Table 13-3 TCP/IP Filter Rule Menu Fields

FIELD	DESCRIPTION	EXAMPLE
IP Protocol	Protocol refers to the upper layer protocol, e.g., TCP is 6,	0-255
	UDP is 17 and ICMP is 1. This value must be between 0
	and 255
IP Source Route	If Yes, the rule applies to packet with IP source route	No
	option; else the packet must not have source route option.
	The majority of IP packets do not have source route.
Destination
IP Address	Enter the destination IP Address of the packet you wish to	IP address
	filter. This field reads don’t-careif it is 0.0.0.0.
IP Mask	Enter the IP mask that will be used to mask the bits of the	IP mask
	IP address given in the Destination IP Address field.
Port #	Enter the destination port of the packets that you wish to	0-65535
	filter. The range of this field is 0 to 65535. This field reads
	don’t-care if it is 0.
Port # Comp	Select the comparison to apply to the destination port in	Equal
	the packet against the value given in Destination Port #
	field. Options are: None, Less, Greater, Equal or Not
	Equal.
Source
IP Address	Enter the source IP Address of the packet you wish to	IP Address
	filter. This field reads don’t-careif it is 0.0.0.0.
IP Mask	Enter the IP mask that will be used to mask the bits of the	IP Mask
	IP address given in the Source IP Address field.
Port #	Enter the source port of the packets that you wish to filter.	0-65535
	The range of this field is 0 to 65535. This field reads
	don’t-care if it is 0.
Port # Comp	Select the comparison to apply to the source port in the	None
	packet against the value given in Source Port # field.
	Options are: None, Less, Greater, Equal or Not Equal.
TCP Estab	This field is applicable only when IP Protocol field is 6,	Yes
	TCP. If Yes, the rule matches only established TCP	No
	connections; else the rule matches all TCP packets.

13-8 Filter Configuration