[OpenIndiana-discuss] ip v6 dhcp error messages

[Bill Sommerfeld]

On 3/12/25 05:25, Stephan Althaus wrote:
> On 3/12/25 13:05, Stephan Althaus wrote:
>>
>> Hi!
>>
>> It seems, that the OI server initiates DHCPv6 request every second, 
>> and my fritz router does respond accordingly...
>> ... but the system says its no good (?)
>>
>> This repeats every second..
>>
>> Mar 12 13:04:14 oi /sbin/dhcpagent[156]: [ID 577356 daemon.error] 
>> plumb_lif: SIOCSLIFFLAGS e1000g1:4: File exists
>> Mar 12 13:04:14 oi /sbin/dhcpagent[156]: [ID 884816 daemon.warning] 
>> configure_v6_leases: no IAADDRs found in IA_NA
>> Mar 12 13:04:14 oi /sbin/dhcpagent[156]: [ID 987277 daemon.warning] 
>> configure_v6_leases: no usable IA_NA option found
>> Mar 12 13:04:14 oi /sbin/dhcpagent[156]: [ID 350639 daemon.warning] 
>> dhcp_bound: no address lease established
>> Mar 12 13:04:14 oi /sbin/dhcpagent[156]: [ID 587021 daemon.warning] 
>> accept_v6_message: dhcp_bound failed for e1000g1
> 
> snoop shows the details. Whats wrong with this ??
> 

> DHCPv6: IA: ----- Identity Association -----
> DHCPv6: IA: Option Code = 5 (IA Address)
> DHCPv6: IA:   Address = 2003:ca:8716:3700:921b:eff:fe47:e2e5

This could be something I've run into before .   The problem could be 
that the DHCPv6 server is assigning you an address that the system 
already picked for itself via stateless address autoconfiguration. 
dhcpagent attempts to add that address to the interface and it fails 
(because it's already present on a different logical interface).

I have a long-backburnered work-in-progress patch that I never finished 
because I found a different workaround (and then my ISP's router stopped 
doing this).

Try turning off DHCPv6 and just use stateless address autoconfig - 
recreate the ipv6 address with something like:

ipadm create-addr -T addrconf -p stateful=no ....

					- Bill