wanip_linksys_e900_upnp.sh

#!/bin/bash

# Step 1:
#   Enable UPnP in Linksys E900

# Step 2:
#   sudo nano /usr/sbin/wanip_linksys_e900_upnp.sh
#   sudo chmod +x /usr/sbin/wanip_linksys_e900_upnp.sh
curl -H "SOAPAction: urn:schemas-upnp-org:service:WANIPConnection:1#GetExternalIPAddress" -d "<?xml version="1.0"?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:GetExternalIPAddress xmlns:u="urn:schemas-upnp-org:service:WANIPConnection:1"></u:GetExternalIPAddress></s:Body></s:Envelope>" http://192.168.1.1:1780/control?WANIPConnection

# Step 3:
#   Add to file:
#     [/etc/ddclient/]ddclient.conf
#   Line:
#     use=cmd, cmd=/usr/sbin/wanip_linksys_e900_upnp.sh, cmd-skip=NewExternalIPAddress