asterisk users - Mar 2013 - IPv6 and IPv4 binding address on a server with 2 network cards

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/
    /;   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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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
> 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*
> *;   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
>
>
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> New to Asterisk? Join us for a live introductory webinar every Thurs:
>                http://www.asterisk.org/hello
>
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>    http://lists.digium.com/mailman/listinfo/asterisk-users
>
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Thank you Asghar.

Well, with the current status, and for this scenario, it looks like we
have to implement some kind of workaround. For now I will keep the
/bindaddr=::  /parameter.

- Miguel Baptista 

On 3/11/2013 11:30 AM, Asghar Mohammad wrote:
> HI Miguel,
> asterisk listen only on last ip even in peer configuration here is
> my workaround hope this will help you. 
> i am using 1 asterisk /instances //per ip that share same config
> files, the only /deference is different ip, ports.
> create sip.conf with every /instances //of asterisk and put only
> general section with ip port you need create common_sip.conf and put
> everything you need simlink common_sip.conf into every asterisk dir
> and include common_sip.conf in sip.conf./
> now you have multiple asterisk on multiple ips with same configuration.
>
>
> On Mon, Mar 11, 2013 at 11:03 AM, Miguel Baptista
> <miguel.baptista at uninett.no <mailto:miguel.baptista at
uninett.no>> wrote:
>
>     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
>>
>>
>>         --
>>        
_____________________________________________________________________
>>         -- Bandwidth and Colocation Provided by
>>         http://www.api-digital.com --
>>         New to Asterisk? Join us for a live introductory webinar
>>         every Thurs:
>>                        http://www.asterisk.org/hello
>>
>>         asterisk-users mailing list
>>         To UNSUBSCRIBE or update options visit:
>>            http://lists.digium.com/mailman/listinfo/asterisk-users
>>
>>
>>
>>
>>     --
>>    
_____________________________________________________________________
>>     -- Bandwidth and Colocation Provided by http://www.api-digital.com
--
>>     New to Asterisk? Join us for a live introductory webinar every
Thurs:
>>                    http://www.asterisk.org/hello
>>
>>     asterisk-users mailing list
>>     To UNSUBSCRIBE or update options visit:
>>        http://lists.digium.com/mailman/listinfo/asterisk-users
>
>
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