ZyXEL Communications 10, 50 Table 11-1View Firewall Log

ZyWALL 10/50 Internet Security Gateway

Table 11-1 View Firewall Log

FIELD	DESCRIPTION	EXAMPLES
#	This is the index number of the firewall log. 128 entries		23
	are available numbered from 0 to 127. Once they are
	all used, the log will wrap around and the old logs will
	be lost.
Time	This is the time the log was recorded in this format.	mm:dd:yy	e.g., Jan 1 00
	You must configure menu 24.10 for real time;	hh:mm:ss	e.g., 00:00:00
	otherwise the clock will start at 2000/01/01 00:00:00
	the last time the ZyWALL was reset.
Packet	This field lists packet information such as protocol and	From and To IP addresses
Information	src/dest port numbers (TCP, UDP), or protocol, type	Protocol and port numbers
	and code (ICMP).
Reason	This field states the reason for the log; i.e., was the	not match
	rule matched, not matched or was there an attack. The	<1,01> dest IP
	set and rule coordinates (<X, Y> where X=1,2;
	Y=00~10) follow with a simple explanation. There are	This means this packet does
	two policy sets;:set 1 (X = 1) is for LAN to WAN rules	not match the destination IP
	and set 2 (X = 2) for WAN to LAN rules. Y represents	address in set 1, rule 1. Other
	the rule in the set. You can configure up to 10 rules in	reasons (instead of dest IP)
	any set (Y = 01 to 10). Rule number 00 is the default	are src IP, dest port, src port
	rule.	and protocol.
	This is a log for a DoS attack.	attack
		land, ip spoofing, icmp echo,
		icmp vulnerability, NetBIOS,
		smtp illegal command,
		traceroute, teardrop or syn
		flood
Action	This field displays whether the packet was blocked or	block, forward
	forwarded. None means that no action is dictated by		or none
	this rule.

After viewing the firewall log, ENTER “y” to clear the log or “n” to retain it. With either option you will be returned to Menu 21- Filter and Firewall Setup.

Introducing the ZyWALL Firewall 11-3