Allied Telesis AT-WR4500 manual

220	AT-WR4500 Series - IEEE 802.11abgh Outdoor Wireless Routers
	RouterOS v3 Configuration and User Guide

every - match every every+1th packet. For example, if every=1 then the rule matches every 2nd packet

counter - specifies which counter to use. A counter increments each time the rule containing nth match matches

packet - match on the given packet number. The value by obvious reasons must be between 0 and every. If this option is used for a given counter, then there must be at least every+1 rules with this option, covering all values between 0 and every inclusively.

out-bridge-port(name) - actual interface the packet is leaving the router through (if bridged, this property matches the actual bridge port, while out-interface- the bridge itself)

out-interface(name) - interface the packet is leaving the router through (if the interface is bridged, then the packet will appear to leave through the bridge interface itself)

packet-mark(text) - matches packets marked via mangle facility with particular packet mark packet-size(integer: 0..65535-integer: 0..65535{0,1}) - matches packet of the specified size or size range in bytes

min - specifies lower boundary of the size range or a standalone value max - specifies upper boundary of the size range

port (port{0-16}) - matches if any (source or destination) port matches the specified list of ports or port ranges (note that the protocol must still be selected, just like for the regular src-portand dst-portmatchers)

protocol (ddp egp encap ggp gre hmp icmp idrp-cmtp igmp ipencap ipip ipsec-ah ipsec- esp iso-tp4 ospf pup rdp rspf st tcp udp vmtp xns-idp xtp integer) - matches particular IP protocol specified by protocol name or number. You should specify this setting if you want to specify ports

psd (integer,time,integer,integer) - attempts to detect TCP and UDP scans. It is advised to assign lower weight to ports with high numbers to reduce the frequency of false positives, such as from passive mode FTP transfers

WeightThreshold - total weight of the latest TCP/UDP packets with different destination ports coming from the same host to be treated as port scan sequence

DelayThreshold - delay for the packets with different destination ports coming from the same host to be treated as possible port scan subsequence

LowPortWeight - weight of the packets with privileged (<=1024) destination port HighPortWeight - weight of the packet with non-priviliged destination port random (integer) - match packets randomly with given propability

routing-mark(name) - matches packets marked by mangle facility with particular routing mark same-not-by-dst(yes no) - specifies whether to account or not to account for destination IP address when selecting a new source IP address for packets matched by rules with action=same src-address(IP address/netmask IP address-IP address) - specifies the address range an IP packet is originated from. Note that console converts entered address/netmask value to a valid network address, i.e.:1.1.1.1/24 is converted to 1.1.1.0/24

src-address-list(name) - matches source address of a packet against user-defined address list src-address-type(unicast local broadcast multicast) - matches source address type of the IP packet, one of the:

unicast - IP addresses used for one point to another point transmission. There is only one sender and one receiver in this case

local - matches addresses assigned to router's interfaces

broadcast - the IP packet is sent from one point to all other points in the IP subnetwork

multicast - this type of IP addressing is responsible for transmission from one or more points to a set of other points

src-mac-address(MAC address) - source MAC address

src-port(integer: 0..65535-integer: 0..65535{*}) - source port number or range

tcp-mss(integer: 0..65535) - matches TCP MSS value of an IP packet

time (time-time,sat fri thu wed tue mon sun{+}) - allows to create filter based on the packets' arrival time and date or, for locally generated packets, departure time and date

to-addresses(IP address-IP address{0,1}; default: 0.0.0.0) - address or address range to replace original address of an IP packet with

to-ports (integer: 0..65535-integer: 0..65535{0,1}) - port or port range to replace original port of an IP packet with