MikroTik RouterOS v2.9, Справочное руководство

Страница: 102 / 709

[admin@MikroTik] ip route> /ping 10.0.0.1
10.0.0.1 ping timeout
2 packets transmitted, 0 packets received, 100% packet loss
[admin@MikroTik] ip firewall nat> .. service-port print
Flags: X - disabled, I - invalid
# NAME PORTS
0 ftp 21
1 tftp 69
2 irc 6667
3 X h323
4
quake3
5 mms
6 gre
7 pptp
[admin@MikroTik] ip firewall nat>
Lists and Item Names
Description
Lists
Many of the command levels operate with arrays of items: interfaces, routes, users etc. Such arrays
are displayed in similarly looking lists. All items in the list have an item number followed by its
parameter values.
To change parameters of an item, you have to specify it's number to the set command.
Item Names
Some lists have items that have specific names assigned to each. Examples are interface or user
levels. There you can use item names instead of item numbers.
You do not have to use the print command before accessing items by name. As opposed to
numbers, names are not assigned by the console internally, but are one of the items' properties.
Thus, they would not change on their own. However, there are all kinds of obscure situations
possible when several users are changing router's configuration at the same time. Generally, item
names are more "stable" than the numbers, and also more informative, so you should prefer them to
numbers when writing console scripts.
Notes
Item numbers are assigned by print command and are not constant - it is possible that two
successive print commands will order items differently. But the results of last print commands are
memorized and thus, once assigned, item numbers can be used even after add, remove and move
operations (after move operation item numbers are moved with the items). Item numbers are
assigned on per session basis, they will remain the same until you quit the console or until the next
print command is executed. Also, numbers are assigned separately for every item list, so ip
address print would not change numbers for interface list.
Example
Page 88 of 695
Copyright 1999-2007, MikroTik. All rights reserved. Mikrotik, RouterOS and RouterBOARD are trademarks of Mikrotikls SIA.
Other trademarks and registred trademarks mentioned herein are properties of their respective owners.