# IPv6 Configuration not working

**URL:** <https://forums.suse.com/t/ipv6-configuration-not-working/26204>\
**Category:** SLES Networking\
**Created:** [October 13, 2014, 11:43am UTC](https://forums.suse.com/t/ipv6-configuration-not-working/26204 "2014-10-13T11:43:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![tomski\_ffb](https://avatars.discourse-cdn.com/v4/letter/t/898d66/32.png) [@tomski\_ffb](https://forums.suse.com/u/tomski_ffb)\
**Post date:** [October 13, 2014, 11:43am UTC](https://forums.suse.com/t/ipv6-configuration-not-working/26204/1 "2014-10-13T11:43:36Z")

</div>

Hello,

I have trouble to get an IPv6 address configured on SLES11SP3.  
The system wont assign the IPv6 address after a reboot which is configured in “/etc/sysconfig/network/ifcfg-br0” (Address is not shown in ifconfig)

When I try to add the IPv6 address manually by enter the command below, all is working fine !

[PHP]ip -6 address add 2A00:xxxx:2010:xxxx:1::2/112 dev br0  
ip -6 route add default via 2A00:xxxx:2010:xxxx:0000:0000:0000:0001 dev br0[/PHP]

Here is my br0 configuration file: /etc/sysconfig/network/ifcfg-br0:

[PHP]BOOTPROTO=‘static’  
BRIDGE=‘yes’  
BRIDGE\_FORWARDDELAY=‘0’  
BRIDGE\_PORTS=‘eth2’  
BRIDGE\_STP=‘off’  
BROADCAST=’’  
ETHTOOL\_OPTIONS=’’  
IPADDR=’’  
MTU=’’  
NETWORK=’’  
PREFIXLEN=’’  
REMOTE\_IPADDR=’’  
STARTMODE=‘onboot’  
USERCONTROL=‘no’  
IPV6INIT=yes  
IPV6ADDR=2A00:xxxx:2010:xxxx:1::2/112  
IPV6\_DEFAULTGW=2A00:xxxx:2010:xxxx:0000:0000:0000:0001  
IPV6\_DEFAULTDEV=br0[/PHP]

Is there someting I have done wrong ?

Regards !!

---

<div class="post-metadata">

**Author:** ![Jens-U](https://avatars.discourse-cdn.com/v4/letter/j/d78d45/32.png) [@Jens-U](https://forums.suse.com/u/Jens-U)\
**Post date:** [October 13, 2014, 5:56pm UTC](https://forums.suse.com/t/ipv6-configuration-not-working/26204/2 "2014-10-13T17:56:42Z")

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Hi tomski\_ffb,

[QUOTE=tomski\_ffb;24133]Hello,

I have trouble to get an IPv6 address configured on SLES11SP3.  
The system wont assign the IPv6 address after a reboot which is configured in “/etc/sysconfig/network/ifcfg-br0” (Address is not shown in ifconfig)

When I try to add the IPv6 address manually by enter the command below, all is working fine !

[PHP]ip -6 address add 2A00:xxxx:2010:xxxx:1::2/112 dev br0  
ip -6 route add default via 2A00:xxxx:2010:xxxx:0000:0000:0000:0001 dev br0[/PHP]

Here is my br0 configuration file: /etc/sysconfig/network/ifcfg-br0:

[PHP]BOOTPROTO=‘static’  
BRIDGE=‘yes’  
BRIDGE\_FORWARDDELAY=‘0’  
BRIDGE\_PORTS=‘eth2’  
BRIDGE\_STP=‘off’  
BROADCAST=’’  
ETHTOOL\_OPTIONS=’’  
IPADDR=’’  
MTU=’’  
NETWORK=’’  
PREFIXLEN=’’  
REMOTE\_IPADDR=’’  
STARTMODE=‘onboot’  
USERCONTROL=‘no’  
IPV6INIT=yes  
IPV6ADDR=2A00:xxxx:2010:xxxx:1::2/112  
IPV6\_DEFAULTGW=2A00:xxxx:2010:xxxx:0000:0000:0000:0001  
IPV6\_DEFAULTDEV=br0[/PHP]

Is there someting I have done wrong ?

Regards !![/QUOTE]

do you see any hints/messages/errors when trying to activate the configuration via “ifup br0” (probably issuing “ifdown br0” before that)? Anything in syslog?

Regards,  
Jens