|  | * The following are a list of values which exist within IP Filter and which | 
|  | * might be suitable for setting at bootup. | 
|  | * | 
|  | * ICMP_UNREACH_FILTER - default used for return-icmp | 
|  | set ipf:ipl_unreach = 13 | 
|  | set ipf:fr_flags = 0 | 
|  | * FR_NOMATCH | FR_PASS | 
|  | set ipf:fr_pass = 0x400002 | 
|  |  | 
|  | * Connection state timeouts. | 
|  | * the following are all measure of time in half-seconds. | 
|  | set ipf:fr_tcpidletimeout = 864000 | 
|  | set ipf:fr_tcpclosewait = 60 | 
|  | set ipf:fr_tcplastack = 20 | 
|  | set ipf:fr_tcptimeout = 120 | 
|  | set ipf:fr_tcpclosed = 1 | 
|  | set ipf:fr_udptimeout = 120 | 
|  | set ipf:fr_icmptimeout = 120 | 
|  |  | 
|  | * NAT timeouts | 
|  | set ipf:fr_defnaticmpage = 6 | 
|  | set ipf:fr_defnatage = 600 | 
|  |  | 
|  | * Fragment timeouts | 
|  | set ipf:fr_ipfrttl = 1200 | 
|  | * |