Script to send WAN IP address to Email box

tomleehk

If you hope to send your router's WAN IP address to an email box every time the router is restarted, below is what you need to do:

[Approach 1-MailSend package]
1) Use OpenSSH to access default server IP 192.168.1.1 and input the followings to install mailsend package
    opkg update
    opkg install mailsend
2) Add the followings to the end of your /etc/hotplug.d/iface/20-firewall script:

1.     if [ ! -f /tmp/ipaddress.bak ]
   
2.     then
   
3.     sleep 5s
   
4.     ifstatus wan | grep '"address"' > /tmp/ipaddress.txt
   
5.     sleep 5s
   
6.     if [ -s /tmp/ipaddress.txt ]
   
7.     then
   
8. mailsend -to <target_email> -from <source_email> -starttls -port 587 -auth -smtp <smtp server URL> -sub "WAN IP" -msg-body /tmp/ipaddress.txt  +cc +bc -v -user <source_email> -pass <password>
   
9.     rm /tmp/ipaddress.bak
   
10.     mv /tmp/ipaddress.txt /tmp/ipaddress.bak
    
11.     fi
    
12.     fi

複製代碼

Restart router to test and verify the result.


[Approach 2-msmtp package]
1) Use OpenSSH to access default server IP 192.168.1.1 and input the followings to install msmtp package
    opkg update
    opkg install msmtp
2) Edit /etc/msmtprc, sample below

1. # Example for a system wide configuration file
   
2. host smtp-mail.outlook.com
   
3. port 587
   
4. auth on
   
5. user <email id>
   
6. password <email password>
   
7. 
   
8. # Construct envelope-from addresses of the form "user@oursite.example".
   
9. auto_from off
   
10. #maildomain oursite.example
    
11. from <email id>
    
12. 
    
13. # Use TLS.
    
14. tls on
    
15. tls_starttls on
    
16. tls_certcheck off
    
17. 
    
18. # Syslog logging with facility LOG_MAIL instead of the default LOG_USER.
    
19. syslog LOG_MAIL

複製代碼

3) Add the followings to the end of your /etc/hotplug.d/iface/20-firewall script:

1.     if [ ! -f /tmp/email.bak ]
   
2.     then
   
3.     sleep 5s
   
4.     ifstatus wan | grep '"address"' > /tmp/ipaddress.txt
   
5.     sleep 5s
   
6.     if [ -s /tmp/ipaddress.txt ]
   
7.     then
   
8.     string1="Subject:WAN IP"
   
9.     string2=$(ifstatus wan | grep '"address"')
   
10.     sleep 30s
    
11.     string3=$(date +"%Y-%m-%d %T %Z")
    
12.     string=$string1$string2" "$string3
    
13.     echo -e $string"\n\n" > /tmp/email.txt
    
14.     echo -e $string3"\n\n" >> /tmp/email.txt
    
15.     echo -e $string2"\n\n" >> /tmp/email.txt
    
16.     sendmail <target email> < /tmp/email.txt
    
17.     rm /tmp/email.bak
    
18.     mv /tmp/email.txt /tmp/email.bak
    
19.     rm /tmp/ipaddress.bak
    
20.     mv /tmp/ipaddress.txt /tmp/ipaddress.bak
    
21.     fi
    
22.     fi

複製代碼

Remark : If you need to use a second Email box to send outgoing email in parallel, create an extra configuration file, say  /etc/msmtprc2 and add the below line
    sendmail -C/etc/msmtprc2   <target email2> < /tmp/email.txt
at appropriate position.