Re: ipv6 autoyast, wrong netmask in ifcfg-eth0

On Tue, Jul 16, Vladimir Ondrus wrote:

> Hi,
> 
> We are using SLES11 SP2.
> We are trying to setup ipv6 and ipv4 address on the same interface (eth0)
> using autoyast installation:
> 
> using yast2 autoyast gui I've generated this autoyast.xml piece:
>     <interface>
>          <aliases>
>            <alias0>
>              <IPADDR>219.1.90.52</IPADDR>
>              <NETMASK>255.255.255.128</NETMASK>
>            </alias0>
>          </aliases>
>          <bootproto>static</bootproto>
>          <device>eth0</device>
>          <ipaddr>2a00:8a00:6000:40::451</ipaddr>
>          <prefixlen>119</prefixlen>
>          <startmode>auto</startmode>
>          <usercontrol>no</usercontrol>
>        </interface>
> 
> 
> but after autoyast installation the config file (the field IPADDR) looks
> crippled :
> #/>cat /etc/sysconfig/network/ifcfg-eth0
> BOOTPROTO='static'
> IPADDR='2a00:8a00:6000:40::451/7'  <--- why is added '/7'
> PREFIXLEN='119'
> STARTMODE='auto'
> USERCONTROL='no'
> IPADDR_='219.1.90.52/25'
> 
> #/>ifconfig eth0
> eth0      Link encap:Ethernet  HWaddr 00:50:56:3F:AA:BC
>            inet addr:219.1.90.52  Bcast:219.1.90.127 Mask:255.255.255.128
>            inet6 addr: 2a00:8a00:6000:40::451/7 Scope:Global
>            inet6 addr: fe80::250:56ff:fe3f:aabc/64 Scope:Link
>            UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>            RX packets:189 errors:0 dropped:0 overruns:0 frame:0
>            TX packets:108 errors:0 dropped:0 overruns:0 carrier:0
>            collisions:0 txqueuelen:1000
>            RX bytes:18440 (18.0 Kb)  TX bytes:21087 (20.5 Kb)
> 
> 
> if we cut the '/7' prefix for IPADDR line, then everything works fine :
> ifconfig eth0
> eth0      Link encap:Ethernet  HWaddr 00:50:56:3F:AA:BC
>            inet addr:219.1.90.52  Bcast:219.1.90.127 Mask:255.255.255.128
>            inet6 addr: 2a00:8a00:6000:40::451/119 Scope:Global
> 
> 
> Could you please advice us why ipv6 netmask autoconfiguration is not working?

Unfortunately my ipv6 knowledge is quite limited and I do not have a
test environment for that ready.

Could be simply a bug in xml import or ipv6 handling of client lan_auto.ycp
Michal, could you have a look?

Tschuess, 
	Thomas Fehr
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