[TIPS] disabling ipv6 with NetworkManager

jackho · **Posted:** Sun Nov 08, 2009 2:46 pm

Hello world,
I hope I'm at the good place to post.
For those like me who don't want to try another kernel and stick with the Array version which is 2.6.29 as for now (right?) I wanted to share with others the ugly solution I found to completely disable ipv6 on my eeebuntu (not only in firefox). It's kind of dirty hax but it worked for me so... here the script, you have to put it in /etc/NetworkManager/dispatcher.d/, make it chmod 755 and owned by root for it to work:

Code:

#!/bin/bash
#set -x
[[ $2 = "up" ]] || exit 0
DATE=$(LC_TIME=C date +'%b %e %T')
IF_LIST=$(ifconfig | grep Link | cut -d " " -f 1)
ACTIVE_IF=

# Have a little wait because of NetworkManager sometimes reassociating with
# AP and thus renewing wlan addresses.
sleep 65

for IFACE in $IF_LIST; do
        # Get address
        IPV6_ADDR=$(ifconfig $IFACE | awk '/inet6/ {print $3}')
        
        # Remove it and get list of addresses removed, no matter what, lo will
        # always be listed if it's not been removed address at least once.
        # TODO: remove lo someday :-)
        if [ ! -z "$IPV6_ADDR" ]; then
                ifconfig $IFACE inet6 del "$IPV6_ADDR"
                ACTIVE_IF="$ACTIVE_IF "$IFACE
        fi
done

# Nothing has been done?
[[ -z "$ACTIVE_IF" ]] && exit 0

# Script ran ok.
echo "$DATE" "eeepc NetworkManager dispatch: IPv6 a été désactivé sur les interfaces réseau""$ACTIVE_IF" >>/var/log/syslog

Feel free to translate syslog message :wink:

My eeePC's got only 2 interfaces so I don't know what if there's more, please give feedback. But anyway I don't feel the point of having more giving the fact they both work ok here.

Bye!

[TIPS] disabling ipv6 with NetworkManager

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