[Serusers] DNS SRV Record and VRRP/Keepalived

[Steve Blair]

   I seem to remember a previous post where someone addressed the
lack of SRV support by using CNAMEs instead. I don't remember the
full solution but a search of the archives might find the article to which I
am referring.

verbalkint at virgilio.it wrote:

>Hi all,
>
>I've a very difficult problem to solve...I have 2 SER process running over
>2 separate machine...one is the primary and the other is the secondary Sip
>Proxy Server....my PSTN gateway support RFC 2782 (RFC 3263) very well and
>I like this approach to locate the SIP Proxy Servers, but my SIP terminal
>adapter doesn't support this protocol neither have the chance to set up
>the secondary (backup) proxy server...my workaround is to resolve the FQDN
>of the 2 SPSs in the DNS A Record with the virtual IP and to populate the
>DNS SRV records with the real ip (for the pstn gws) ....and here start the
>problem....in the ser.cfg I've set this:
>
>listen=Virtual_IP
>listen=Real_IP_NIC
>
>(listen=0.0.0.0 seems to not work)
>
>advertised_address=??? (which, the Virtual_IP from the inbound to outbound
>or the real ip address for calls outbound to inbound??)
>
>...and there is many side effect...request proxied from my Sip Proxy server
>with Via Header Field Virtual_ip and Record_route with real_ip.....request
>coming from real-ip Proxy blocked from some firewall cause the pinhole is
>open but from request coming from virtual-ip and not from real_ip and so
>on.....
>
>Is there a way to handle this scenario??
>
>Thanx to all,
>
>Verbal
>
>_______________________________________________
>Serusers mailing list
>serusers at lists.iptel.org
>http://lists.iptel.org/mailman/listinfo/serusers
>  
>