Allied Telesis AT-WR4500 manual Command Description

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

Note that the IP addresses assigned statically are not probed.

Property Description

active-address(read-only: IP address) - actual IP address for this lease

active-client-id(read-only: text) - actual client-id of the client

active-mac-address(read-only: MAC address) - actual MAC address of the client

active-server(read-only: list) - actual dhcp server, which serves this client address (IP address) - specify ip address (or ip pool) for static lease

0.0.0.0- use pool from server

agent-circuit-id(read-only: text) - circuit ID of DHCP relay agent

agent-remote-id(read-only: text) - Remote ID, set by DHCP relay agent always-broadcast(yes no) - send all repies as broadcasts

block-access(yes no; default: no) - block access for this client (drop packets from this client)

blocked (read-only: flag) - whether the lease is blocked

client-id(text; default: "") - if specified, must match DHCP 'client identifier' option of the request

expires-after(read-only: time) - time until lease expires

host-name(read-only: text) - shows host name option from last received DHCP request

lease-time(time; default: 0s) - time that the client may use the address 0s - lease will never expire

mac-address(MAC address; default: 00:00:00:00:00:00) - if specified, must match the MAC address of the client

radius (read-only: yes no) - shows, whether this dynamic lease is authenticated by RADIUS or not

rate-limit(read-only: text; default: "") - sets rate limit for active lease. Format is: rx-rate[/tx-rate] [rx- burst-rate[/tx-burst-rate] [rx-burst-threshold[/tx-burst-threshold] [rx-burst-time[/tx-burst-time]]]]. All rates should be numbers with optional 'k' (1,000s) or 'M' (1,000,000s). If tx-rate is not specified, rx-rate is as tx-rate too. Same goes for tx-burst-rate and tx-burst-threshold and tx-burst-time. If both rx-burst- threshold and tx-burst-threshold are not specified (but burst-rate is specified), rx-rate and tx-rate is used as burst thresholds. If both rx-burst-time and tx-burst-time are not specified, 1s is used as default server (read-only: name) - server name which serves this client

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

status (read-only: waiting testing authorizing busy offered bound) - lease status: waiting - not used static lease

testing - testing whether this address is used or not (only for dynamic leases) by pinging it with timeout of 0.5s

authorizing - waiting for response from radius server

busy - this address is assigned statically to a client or already exists in the network, so it can not be leased

offered - server has offered this lease to a client, but did not receive confirmation from the client bound - server has received client's confirmation that it accepts offered address, it is using it now and will free the address not later, than the lease time will be over

use-src-mac(MAC address) - use this source MAC address instead

Command Description

check-status- Check status of a given busy dynamic lease, and free it in case of no response make-static- convert a dynamic lease to static one

￿

If rate-limit is specified, a simple queue is added with corresponding parameters when lease enters bound state. Arp entry is added right after adding of queue is done (only if add-arp is enabled for dhcp server). To be sure, that client cannot use his ip address without getting dhcp lease and thus avoiding rate-limit, reply-only mode must be used on that ethernet interface.

Even though client address may be changed (with adding a new item) in lease print list, it will not change for the client. It is true for any changes in the DHCP server configuration because of the nature of the DHCP protocol. Client tries to renew assigned IP address only when half a lease time is past (it tries to renew several times). Only when full lease time is past and IP address was not renewed, new lease is asked (rebind operation).

The deault mac-address value will never work! You should specify a correct MAC address there.