Convice Bind to listen on IP alias with a range of IPs.

[Augie Schwer]

Thanks for the reply, please see my previous e-mail about the address
being perfectly pingable on that interface.

We run PowerDNS and Unbound with a similar interface configuration
without a problem, I'm sure Bind can too, I just need to know what the
special config. option I'm missing is.

Any help is appreciated, thank you. :)

--Augie

On Mon, Apr 30, 2012 at 4:36 PM, michoski <michoski at cisco.com> wrote:
> On 4/30/12 2:56 PM, "Augie Schwer" <augie.schwer at gmail.com> wrote:
>> I must be doing something wrong, because what I want to do doesn't
>> seem that difficult.
>>
>> I have a range of IPs bound to a local interface:
>>
>> lo:1      Link encap:Local Loopback
>>           inet addr:10.0.0.1  Mask:255.255.255.224
>
> This isn't a /27 CIDR range, it's one IP alias with the wrong netmask.  :-)
>
> IP aliases should generally have a 255.255.255.255 netmask, and you'd need
> to configure aliases (ifcfg-lo:0, ifcfg-lo:1, etc.) for each IP in the range
> you want to listen-on.
>
>> And I want to convince Bind to listen on sub-set of the given range (
>> 10.0.0.2 for example ), yet when I configure that IP:
>>
>> listen-on { 10.0.0.2; };
>>
>> Bind won't listen on that interface:
>
> Yes, indeed, only 10.0.0.1 is up according to your ifconfig output.  Once
> you've fixed that, you should be able to use an IP range in your listen-on
> statement as needed, for example:
>
> listen-on { !10.0.0.1; 10.0.0/24; };
>
> The BIND ARM shows you listen-on's full syntax:
>
> http://ftp.isc.org/isc/bind9/cur/9.7/doc/arm/Bv9ARM.html
>
> Good luck.
>
> --
> Men use thought only to justify their wrong doings,
> and speech only to conceal their thoughts.
>        -- Voltaire
>



-- 
Augie Schwer    -    Augie at Schwer.us    -    http://schwer.us