Black Box LRA005A-R2 - Manual (Page 75)

ASYNC ROUTER AR-P, AR-5, AND SYNC ROUTER USER’S MANUAL
75
B.1.4 S ET U P AN E XCESSIVE -U SE W ARNING (IP NETWORKS ONLY )
You can configure the Router to send warnings during the day when more than a specified amount of
time is used for outgoing calls on a given interface. First turn syslog on. From tcp/ip mode, enter
syslog on
Next enter the dialup warning command:
dialup interface warning mins
Whenever you have used more than mins minutes of time for outgoing calls in one day, a syslog
message like this is sent to the syslog host and to the console:
router1 modem0 High usage, more than 240 minutes used today
In the example, the display indicates that the Router named router1 has placed more than 4 hours (240
minutes) of calls using the modem0 interface.
You can display the current warning setting by entering:
dialup interface warning
The default dialup quota for a WAN interface (modem, sync) is 24 hours per day, or 1140 minutes.
Refer to the dialup command in Section 2.9 of the Reference Manual, which starts on page 137.
B.2 How to Limit Line Use
If the Router’s line use is excessive for an interface, you may want to limit it until you can determine the
cause. Three methods are available:
• Set a dialup-time quota for that interface
• Use IP and IPX dial filters on that interface
• Use the Router link optimization suite of filters (NLO)
B.2.1 S ET A D IALUP T IME Q UOTA FOR THAT I NTERFACE
To restrict the outgoing dialup-line use by all hosts to a time quota limit, use the dialup quota command.
This command limits the amount of outgoing calls to mins minutes per day. Enter:
dialup interface quota mins
Because incoming calls are not listed on your phone bill, they are not monitored. At midnight each
night the quota is reset back to mins minutes for another 24-hour period. By default, the quota is set to
1440 minutes (24 hours)—in other words, no quota at all. If you desire a smaller dialup quota, create
one using the dialup quota command.
When the quota on an interface interface is reached, any current connection is dropped and cannot be
renewed until the quota is reset, either automatically at midnight or by issuing another dialup quota
command. In addition, the following syslog message is sent to the syslog host and to the console:
router1 modem0 Dropping link, time quota of 480 minutes exceeded
After this time, data packets received at this interface are discarded, and the following syslog message is
sent to the syslog host and to the Router’s console:
router1 modem0 Can’t dial, time quota of 480 minutes exceeded