[asterisk-users] IPv6 and IPv4 binding address on a server with 2 network cards

Wed Mar 13 14:30:11 CDT 2013

Thank you Olle.

Well, in my test scenario I will leave the /bindaddr=::/ value.
Any idea if/when asterisk will support two specific bindaddr (one for
IPv4 and another for IPv6) ?

- Miguel Baptista

On 3/13/2013 10:06 AM, Olle E. Johansson wrote:
> ; With the current situation, you can do one of four things:
> ;  a) Listen on a specific IPv4 address.      Example: bindaddr=192.0.2.1
> ;  b) Listen on a specific IPv6 address.      Example:
> bindaddr=2001:db8::1
> ;  c) Listen on the IPv4 wildcard.            Example: bindaddr=0.0.0.0
> ;  d) Listen on the IPv4 and IPv6 wildcards.  Example: bindaddr=::
>
>
> From the configuration file - you can do "ONE" of four things, but
> only one. You can not have multiple bindaddr= settings.
>
> /O
> 11 mar 2013 kl. 11:03 skrev Miguel Baptista
> <miguel.baptista at uninett.no <mailto:miguel.baptista at uninett.no>>:
>
>> Hi Asghar,
>>
>> Thanks for you reply. Which Asterisk version are you using?
>>
>> I am using Asterisk 11.1.0
>> when I use the /bindaddr  /parameters with specific IP addresses,
>> Asterisk will listen only on the last entry.
>>
>> For example, when I have
>> /bindaddr=ipv4A:port
>> //bindaddr=[ipv6A]:port /
>>
>> it will listen only on the IPv6A address
>>
>> and when I have the other way around:
>> /
>> bindaddr=[ipv6A]:port /
>> /bindaddr=ipv4A:port
>> //
>> /Asterisk will only listen on the IPv4A address.
>>
>> The only way I found to force asterisk to listen on both IPv4A and
>> IPv6 A was to use/bindaddr=[::] /but it makes asterisk to listen also
>> on the other IP addresses.
>>
>> Maybe this is fix on a newer Asterisk version.
>>
>> - Miguel Baptista
>>
>> On 3/10/2013 8:04 PM, Asghar Mohammad wrote:
>>> hi,
>>> i am using similer setup just put / bindaddr=ipv4A:port
>>> and //bindaddr=[ipv6A]:port ans it should work./
>>>
>>> On Sun, Mar 10, 2013 at 3:04 PM, Miguel Baptista
>>> <miguel.baptista at uninett.no <mailto:miguel.baptista at uninett.no>> wrote:
>>>
>>>     Hello,
>>>
>>>     I am doing some tests with asterisk on a dual-stack
>>>     environment.  I have some doubts regarding asterisk binding
>>>     addresses on a server with 2 network cards.
>>>
>>>     According to asterisk documentation:
>>>
>>>         /; With the current situation, you can do one of four things:/
>>>         /;  a) Listen on a specific IPv4 address.      Example:
>>>         bindaddr=192.0.2.1/
>>>         /;  b) Listen on a specific IPv6 address.      Example:
>>>         bindaddr=2001:db8::1/
>>>         /;  c) Listen on the IPv4 wildcard.            Example:
>>>         bindaddr=0.0.0.0/
>>>         /;  d) Listen on the IPv4 and IPv6 wildcards.  Example:
>>>         bindaddr=::/
>>>         /; (You can choose independently for UDP, TCP, and TLS, by
>>>         specifying different values for/
>>>         /; "udpbindaddr", "tcpbindaddr", and "tlsbindaddr".)/
>>>         /; (Note that using bindaddr=:: will show only a single IPv6
>>>         socket in netstat./
>>>         /;  IPv4 is supported at the same time using IPv4-mapped
>>>         IPv6 addresses.)/
>>>         /;/
>>>         /; You may optionally add a port number. (The default is
>>>         port 5060 for UDP and TCP, 5061/
>>>         /; for TLS)./
>>>         /;   IPv4 example: bindaddr=0.0.0.0:5062 <http://0.0.0.0:5062/>/
>>>         /;   IPv6 example: bindaddr=[::]:5062/
>>>         /;/
>>>         /; The address family of the bound UDP address is used to
>>>         determine how Asterisk performs/
>>>         /; DNS lookups. In cases a) and c) above, only A records are
>>>         considered. In case b), only/
>>>         /; AAAA records are considered. In case d), both A and AAAA
>>>         records are considered. Note,/
>>>         /; however, that Asterisk ignores all records except the
>>>         first one. In case d), when both A/
>>>         /; and AAAA records are available, either an A or AAAA
>>>         record will be first, and which one/
>>>         /; depends on the operating system. On systems using glibc,
>>>         AAAA records are given/
>>>         /; priority./
>>>
>>>
>>>     Lets say that I have two network cards: A and B.
>>>     Both interfaces have IPv4 and IPv6 addresses: IPv4 A, IPv6 A,
>>>     IPv4 B and IPv6 B.
>>>
>>>     How can I make asterisk to run only on B network addresses (IPv6
>>>     and IPv4)? The /bindaddr=[::] /config parameter tells asterisk
>>>     to run on all available addresses, including the addresses on
>>>     the A network. But that's not exactly what I want.
>>>
>>>     - Miguel Baptista
>>>
>>>
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>>
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>
>
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