Mailinglist Archive: wicked-devel (3 mails)

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Re: [wicked-devel] wickedd-dhcp6 isn't grabbing the global IPv6 address via DHCP
Am 30.12.2015 um 01:37 schrieb Scott Simpson:
I'm using OpenSuSE 42.1 and wicked network management. The wickedd-dhcp6
program is not grabbing the global IPv6 address.

I guess your network admin did not enabled ipv6 router RAs
(there will be no default route and also no DHCP6 or AUTO6)
or disabled DHCP6 in it.

Add DHCLIENT6_MODE=managed to ifcfg-ethX to override.

## Type: list(auto,managed,info)
## Default: auto
#
# This option allows to specify the request mode used by the DHCPv6
# client when the BOOTPROTO is set to dhcp or dhcp6, and overrides
# the "Managed Address Configuration" and the "Other Configuration"
# flags provided by the IPv6 router its Router Advertisement (RA)
# for the network connected to this interface.
#
# auto: follow RA flags, remain silent when no RA flag is set
# info: request other configuration (dns,ntp) only, no IP address
# managed: request IP address as well as other configuration
#
DHCLIENT6_MODE="auto"

Here is my output using wickedd-dhcp6:

eth1 Link encap:Ethernet HWaddr 64:70:02:11:C2:04
inet addr:71.198.202.25 Bcast:255.255.255.255 Mask:255.255.248.0
inet6 addr: fe80::6670:2ff:fe11:c204/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:24268 errors:0 dropped:0 overruns:0 frame:0
TX packets:6366 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6677253 (6.3 Mb) TX bytes:1008811 (985.1 Kb)

When I used to run OpenSuSE 13.1 using NetworkManager I got:

enp6s0 Link encap:Ethernet HWaddr 64:70:02:11:C2:04
inet addr:71.198.202.25 Bcast:71.198.207.255 Mask:255.255.248.0
inet6 addr: fe80::6670:2ff:fe11:c204/64 Scope:Link
inet6 addr: 2001:558:6045:10c:1cc1:f1d1:2df3:7444/128
Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:18326382 errors:0 dropped:0 overruns:0 frame:0
TX packets:4489664 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:13654397617 (13021.8 Mb) TX bytes:1186632969 (1131.6
Mb)

Notice the "Global" line in addition to the "Link" line. Is this not
implemented in wickedd-dhcp6 yet?
Scott

?? the fe80:: scope link address is calculated (EUI64) from the MAC
address and added to any ipv6 capable interface as soon as it goes UP.
It is used by any dhcp6 client to request global address, neighbour
and router discovery (RA, default route setup, ...), ...
It is something like an "ipv6 mac" address [ipv6 is not using arp].

Gruesse / Regards,
Marius Tomaschewski <mt@xxxxxxx>, <mt@xxxxxxxx>
--
SUSE LINUX GmbH, GF: Felix Imendörffer, Jane Smithard,
Dilip Upmanyu, Graham Norton, HRB 21284 (AG Nürnberg),
Maxfeldstraße 5, 90409 Nürnberg, Germany
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