WAN-START script runs by itself every 3 hours

[Marcelo Linardi]

Hi All,
Thanks in advance for reading this post.

I am running Asus WRT Merlin v 378.53 on my RT-AC66u and script " wan-start" runs exactly ( by itself ) every 3 hours.

I am not seeing "WAN Connection: WAN was restored" message after or before wan-start script runs.

This is wan-start content:

#!/bin/sh

DATE=$(date +"%Y-%m-%d-%H%M%S")
#mkdir -p logs
touch /jffs/scripts/logs/$DATE-WAN-start

SMTP="My SMTP server"
FROM="my email address"
FROMNAME="ASUS ROUTER"
TO="my email address"

ntpclient -h pool.ntp.org -s &> /dev/null
sleep 60
echo "Subject: WAN state notification" >/tmp/mail.txt
echo "From: \\"$FROMNAME\\"<$FROM>" >>/tmp/mail.txt
echo "Date: `date -R`" >>/tmp/mail.txt
echo "" >>/tmp/mail.txt
echo "I just got connected to the internet." >>/tmp/mail.txt
echo "" >>/tmp/mail.txt
echo "My WAN IP is: `nvram get wan0_ipaddr`" >>/tmp/mail.txt
echo "Uptime is: `uptime | cut -d ',' -f1 | sed 's/^.\{12\}//g'`" >>/tmp/mail.txt
echo "" >>/tmp/mail.txt
echo "---- " >>/tmp/mail.txt
echo "Your friendly router." >>/tmp/mail.txt
echo "" >>/tmp/mail.txt
cat /tmp/mail.txt | /usr/sbin/sendmail -S"$SMTP" -f"$FROM" $TO -au"my id" -ap"my passw"
rm /tmp/mail.txt


cat syslog.log |grep wan-start shows:

May 19 00:42:47 custom script: Running /jffs/scripts/wan-start (args: 0)
May 19 03:42:48 custom script: Running /jffs/scripts/wan-start (args: 0)
May 19 06:42:50 custom script: Running /jffs/scripts/wan-start (args: 0)
May 19 09:42:52 custom script: Running /jffs/scripts/wan-start (args: 0)
May 19 12:42:53 custom script: Running /jffs/scripts/wan-start (args: 0)
May 19 15:42:55 custom script: Running /jffs/scripts/wan-start (args: 0)
May 19 18:42:57 custom script: Running /jffs/scripts/wan-start (args: 0)
May 19 21:42:59 custom script: Running /jffs/scripts/wan-start (args: 0)


Any idea what can be going on?

BIG THANKS !

 

[RMerlin]

What is the duration of the DHCP lease your ISP gives you?

 

[Marcelo Linardi]

What is the duration of the DHCP lease your ISP gives you?

Sorry for my late response. You made a good question... but, I have no idea on how to get this info. ISP tech support is HORRIBLE, and I can´t ask it to them.

What I can tell you is that as sudden as it started, it stopped. Now, I upgraded to 378.55 and 3 hours after upgraded, script started to run itself back again.

If you have any clue, will help a lot.

Thanks in advance,

 

[mattiL]

Check the router System Log, you should find something like this:

Jun 23 14:57:15 dhcp client: bound xxx.xxx.xxx.xxx via xxx.xxx.xxx.xxx during 1800 seconds.

1800 seconds is the lease time my ISP sets.

 

[Marcelo Linardi]

Hi !, today´s log is showing:

Jul 25 00:05:08 dhcp client: bound xxx.xxx.xxx.xxx via xxx.xxx.xxx.xxx during 600 seconds.

BUT, on main page --> internet status ( click over the world ) says Lease time 6 hours...

I am having the issue every 3 hours

Is there any way to have a deeper log???

Thanks !

 

[ColinTaylor]

BUT, on main page --> internet status ( click over the world ) says Lease time 6 hours...

I am having the issue every 3 hours

That sounds like the correct behaviour then. It is a common practice for clients to renew their leases about half way through their duration.

FYI - My ISP gives me a lease of 5 days.