wan-event and wan0_realip_ip

[Mikii]

Hi,

if wan-event $2 is set to “connected”,

Do you think I can assume that wan0_realip_ip is set to the external IP, and that I can safely execute a curl
Or
should I still perform a double check on wan0_realip_ip and curl connectivity before using them?

 

[dave14305]

I do something like this to make sure the connected event is for the public ISP address, versus no address or the cable modem temporary address while the modem initializes. You could check similarly for realip if you know what it shouldn’t be (empty or private).

# cat wan-event
#!/bin/sh

WANUNIT="$1"
WANIP="$(nvram get wan${WANUNIT}_ipaddr)"
STATE="$2"

if [ "$STATE" = "connected" ] && [ ! -f /tmp/adblock/blocklist.gz ]; then
        case $WANIP in
                0.0.0.0|192.168.100.*) ;;
                *) /jffs/addons/adblock/adblock.sh update & ;;
        esac
fi

I have another script that waits for the internet connected status before downloading an Adblock list.

        local tries
        tries=0
        until [ "$(nvram get link_internet)" = "2" ] || [ "${tries}" -ge "6" ]; do
                logmsg "Waiting for internet connection..."
                sleep 5
                tries=$(( tries + 1 ))
        done
        [ "${tries}" -eq "0" ] || logmsg "Internet connected!"

 

[Mikii]

Thanks @dave14305 for your suggestions.

If I understand it correctly you are checking two different variables to assess if "internet is up":

wan${WANUNIT}_ipaddr and link_internet.

I'll use a similar approach to be on the safe side.

I appreciate your suggestions.