On Mon, Jul 27, 2015 at 4:21 AM, Edgar Pettijohn
<ed...@pettijohn-web.com> wrote:
> On 07/26/15 19:10, Kimmo Paasiala wrote:
>>
>> On Mon, Jul 27, 2015 at 3:00 AM, Kimmo Paasiala <kpaas...@gmail.com>
>> wrote:
>>>
>>> On Mon, Jul 27, 2015 at 2:33 AM, Josh Grosse <j...@jggimi.homeip.net>
>>> wrote:
>>>>
>>>> On 2015-07-26 19:12, Kimmo Paasiala wrote:
>>>>>
>>>>> Hello,
>>>>>
>>>>> I'm in the process of migrating my router/firewall system from FreeBSD
>>>>> to OpenBSD and I came across a minor problem. I want to have a static
>>>>> alias address on an interface that is otherwise configured with DHCP.
>>>>> What I had in FreeBSD was this entry in /etc/dhclient.conf:
>>>>>
>>>>> alias {
>>>>> interface "vr0";
>>>>> fixed-address 192.168.1.200;
>>>>> option subnet-mask 255.255.255.0;
>>>>> }
>>>>>
>>>>> This seems to be silently ignored on OpenBSD 5.7 and the dhclient.conf
>>>>> manual page makes no mention of alias declarations. How am I supposed
>>>>> to achieve the same effect?
>>>>>
>>>>> -Kimmo
>>>>
>>>>
>>>> Perhaps something like this in your /etc/hostname.vr0 instead would work
>>>> for you?
>>>>
>>>> dhcp
>>>> !ifconfig vr0 alias 192.168.1.200/32
>>>
>>> No, doesn't work. Interestingly doing the alias manually when dhclient
>>> is running and vr0 has a public IP address from DHCP:
>>>
>>> sudo ifconfig vr0 alias 192.168.1.200/24
>>>
>>> This kills dhclient(8) completely and removes the main address.
>>>
>>> Any other ideas?
>>>
>>> -Kimmo
>>
>>
>> The system log /var/log/messages reveals:
>>
>> Jul 27 03:01:30 firewall dhclient[23894]: 192.168.1.200 added to vr0;
>> exiting
>>
>> Why is this done in so bizarre fashion? It is not unusual to want to
>> have a static alias address on an interface that is otherwise
>> configured with DHCP.
>>
>> -Kimmo
>>
> I can't test this, but from what I'm reading I think this should work
>
> /etc/hostname.vr0
>
> dhcp "alias 192.168.1.200 netmask 255.255.255.0"
>
Unfortunately that doesn't work either, ifconfig complains about
invalid options. It looks like you can only add media options etc.
with "dhcp". I can live without the alias address, it would have been
a convinient way to access the ADSL modem on the WAN side from inside
the LAN network.
-Kimmo
