Re: Listen on 2 of 3 IP addresses

I've always had my servers have two or three different vlan interfaces.
When I was using sip, I only bound to one interface with network segments
dedicated to voip phones, but did a great deal of experimentation. I think
if the endpoint devices are under your control and to specific groups of
IPs or if you just had a few clients with fixed IPs, you can probably do it
with a combination of appropriate firewall and routing tables and rules.
The rules would have to be symmetrical so the inbound and outbound packets
are restricted to a particular interface.

I gave in to the future and switched a big deployment to pjsip a couple of
years ago. Since then I've had to connect to a couple of appliance devices
that needed to reside in another network, and am operating as you describe
- which as pointed out can be done with pjsip.

On Sun, Jul 17, 2022 at 8:25 PM Thomas Ray <[email protected]> wrote:

> Moving to chan_pjsip solves this problem.
>
>
>
> *From: *asterisk-users <[email protected]> on
> behalf of David Cunningham <[email protected]>
> *Reply-To: *Asterisk Users Mailing List - Non-Commercial Discussion <
> [email protected]>
> *Date: *Sunday, July 17, 2022 at 5:53 PM
> *To: *Asterisk Users Mailing List - Non-Commercial Discussion <
> [email protected]>
> *Subject: *Re: [asterisk-users] Listen on 2 of 3 IP addresses
>
>
>
> Thank you for that reply, Joshua.
>
>
>
> Henning, we can restrict access using the firewall, but unfortunately that
> doesn't solve the problem with the address that's put in the SDP.
>
>
>
>
>
> On Sat, 16 Jul 2022 at 03:14, Henning Follmann <[email protected]>
> wrote:
>
> On Fri, Jul 15, 2022 at 08:57:46AM -0300, Joshua C. Colp wrote:
> > On Fri, Jul 15, 2022 at 1:37 AM David Cunningham <
> [email protected]>
> > wrote:
> >
> > > Hello,
> > >
> > > We have an Asterisk server with 3 IP addresses, and need to listen on
> only
> > > 2 of those. This is with chan_sip. Does anyone know if it's possible?
> > >
> > > If Asterisk listens on the third address then it seems to cause
> problems
> > > with the media address put in the SDP for our use case.
> > >
> >
> > It's not. The chan_sip module allows you to bind to one thing, either a
> > specific address or an any address.
> >
>
> Well...
> maybe chan_sip cannot, but your OS can restrict traffic on any port/iface.
>
> -H
>
> --
> Henning Follmann           | [email protected]
>
>
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>
> Check out the new Asterisk community forum at:
> https://community.asterisk.org/
>
> New to Asterisk? Start here:
>       https://wiki.asterisk.org/wiki/display/AST/Getting+Started
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>
>
>
> --
>
> David Cunningham, Voisonics Limited
> http://voisonics.com/
> USA: +1 213 221 1092
> New Zealand: +64 (0)28 2558 3782
>
> -- _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> Check out the new Asterisk community forum at:
> https://community.asterisk.org/ New to Asterisk? Start here:
> https://wiki.asterisk.org/wiki/display/AST/Getting+Started 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 --
>
> Check out the new Asterisk community forum at:
> https://community.asterisk.org/
>
> New to Asterisk? Start here:
>       https://wiki.asterisk.org/wiki/display/AST/Getting+Started
>
> 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 --

Check out the new Asterisk community forum at: https://community.asterisk.org/

New to Asterisk? Start here:
      https://wiki.asterisk.org/wiki/display/AST/Getting+Started

asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users