[OpenSIPS-Users] DNS failover on 6xx reply

[Ion Constantinescu]

Hello,

Help / advice on the following issue would be much appreciated.

We are running a setup where a front-end opensips box is relaying calls 
to two or more end-client HMP machines (e.g., asterisk).

We are using DNS/SRV records to failover between the end-client machines 
- which seems to be working fine when the actual HMP service is 
completely stopped.

In some cases tough, the HMP service is running in a particular state 
where it is returning 603 replies which in turn seem to be breaking the 
DNS failover protocol.

Note: in a separate setup we are successfully running a 
transaction/dispatcher based failover configuration for which we needed 
the following:
modparam("tm", "disable_6xx_block", 1)

So the question is - is there any way to deal with 6xx response codes 
such that the DNS failover mechanism works (perhaps by using a setting 
similar to the one above) ?

Thank you,
Ion