rtpengine with mutiple IPs on the same network. - sr-users

David Villasmil

5 Jul 5 Jul

4:54 a.m.

I know this is more of a networking routing question, just trying to see if you can find a better solution than re-architecturing the network. Although maybe that’s the best approach, since this is a pretty new setup. Maybe it’s better to do it now and not using work-arounds? On Sun, 5 Jul 2020 at 00:39, David Villasmil <david.villasmil.work(a)gmail.com> wrote:

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Hello guys, I have rtpengine running on a box with ips like this: external: 172.10.0.10 (advertise 10.10.10.1) internal: 172.10.0.11 Both Ips are on the same network. When i do rtpengine_manage i set "direction=external direction=internal", and the SDP offer is correct. The problem I'm having is that when rtp tried to send to the internal network, the OS (i believe) selects the first interface (external) ip 172.10.0.10 to reach the internal network. This I suppose is not a great deal, but I would like to separate them and only use the internal for internal proxying. Help is appreciated! Thanks! Regards, David Villasmil email: david.villasmil.work(a)gmail.com phone: +34669448337

-- Regards, David Villasmil email: david.villasmil.work(a)gmail.com phone: +34669448337

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Sergey Safarov

10:32 a.m.

you can also look https://www.usenix.org/system/files/login/articles/login_summer16_10_anders… On Sun, Jul 5, 2020 at 8:02 AM Sergey Safarov <s.safarov(a)gmail.com> wrote:

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Required configure police based routing https://www.drdobbs.com/policy-routing-in-linux/199100936 https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/ht… On Sun, Jul 5, 2020 at 2:54 AM David Villasmil < david.villasmil.work(a)gmail.com> wrote:

I know this is more of a networking routing question, just trying to see if you can find a better solution than re-architecturing the network. Although maybe that’s the best approach, since this is a pretty new setup. Maybe it’s better to do it now and not using work-arounds? On Sun, 5 Jul 2020 at 00:39, David Villasmil < david.villasmil.work(a)gmail.com> wrote:

Hello guys, I have rtpengine running on a box with ips like this: external: 172.10.0.10 (advertise 10.10.10.1) internal: 172.10.0.11 Both Ips are on the same network. When i do rtpengine_manage i set "direction=external direction=internal", and the SDP offer is correct. The problem I'm having is that when rtp tried to send to the internal network, the OS (i believe) selects the first interface (external) ip 172.10.0.10 to reach the internal network. This I suppose is not a great deal, but I would like to separate them and only use the internal for internal proxying. Help is appreciated! Thanks! Regards, David Villasmil email: david.villasmil.work(a)gmail.com phone: +34669448337

-- Regards, David Villasmil email: david.villasmil.work(a)gmail.com phone: +34669448337 _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

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David Villasmil

2:39 p.m.

Hello, Yeah that’s what I’m thinking. This is on AWS where i added a secondary IP to the instance, wanting to segregate the “public” and “private” But under the hood they’re both private IPs able to reach the private network, and that’s where my problem comes, because the OS simply selects the first interface, not the secondary. So only solution long-term that doesn’t need the deployer to fiddle with network route tables, etc. is just to actually separate them. Thanks all! David On Tue, 7 Jul 2020 at 08:39, Patrick Wakano <pwakano(a)gmail.com> wrote:

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Check your output to the command "ip route show table local". For a connected network, the kernel will select the source IP based on these rules. From memory I think, it is possible to change the "src" parameter to use a different IP, so you can play with that. Anyway, as a general rule, I don't think having multiple IP addresses on the same subnet is a good practice. I would recommend breaking that into multiple subnets so you won't fall under these edge cases. Cheers, Patrick On Sun, 5 Jul 2020 at 15:33, Sergey Safarov <s.safarov(a)gmail.com> wrote:

you can also look https://www.usenix.org/system/files/login/articles/login_summer16_10_anders… On Sun, Jul 5, 2020 at 8:02 AM Sergey Safarov <s.safarov(a)gmail.com> wrote:

Required configure police based routing https://www.drdobbs.com/policy-routing-in-linux/199100936 https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/ht… On Sun, Jul 5, 2020 at 2:54 AM David Villasmil < david.villasmil.work(a)gmail.com> wrote:

I know this is more of a networking routing question, just trying to see if you can find a better solution than re-architecturing the network. Although maybe that’s the best approach, since this is a pretty new setup. Maybe it’s better to do it now and not using work-arounds? On Sun, 5 Jul 2020 at 00:39, David Villasmil < david.villasmil.work(a)gmail.com> wrote: > Hello guys, > > I have rtpengine running on a box with ips like this: > > external: 172.10.0.10 (advertise 10.10.10.1) > internal: 172.10.0.11 > > Both Ips are on the same network. > When i do rtpengine_manage i set "direction=external > direction=internal", and the SDP offer is correct. > > The problem I'm having is that when rtp tried to send to the internal > network, the OS (i believe) selects the first interface (external) ip > 172.10.0.10 to reach the internal network. > This I suppose is not a great deal, but I would like to separate them > and only use the internal for internal proxying. > > Help is appreciated! > > Thanks! > > Regards, > > David Villasmil > email: david.villasmil.work(a)gmail.com > phone: +34669448337 > -- Regards, David Villasmil email: david.villasmil.work(a)gmail.com phone: +34669448337 _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

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Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

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-- Regards, David Villasmil email: david.villasmil.work(a)gmail.com phone: +34669448337

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