Re: ultramonkey and asterisk

Simon Horman wrote:
> On Wed, Oct 15, 2008 at 12:48:39AM +0800, Ron wrote:
>> hi,
>>
>> anyone able to se ultramonkey lvs for sip (specifically asterisk).
>>
>> i am testing it now but my phone could not register, it seems like when 
>> ultramonkey forwards it to the real server, the auth header is missing. 
>> any idea?
> 
> Hi,
> 
> it is a long time since I have tried to use SIP with LVS.
> But as I recall the main problem is that a) the protocol is
> UDP and thus doesn't have connections that can be tracked
> at layer 4 and b) in the case of the tests that I was running
> it wasn't entirely obvious how to identify connections
> based on the source and destination port and IP address,
> which is essetnailly how LVS works. Julian's One Packet scheuler
> is an attempt to address this.
> 
> http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/
> 
> The discussion here also seems relevant
> 
> http://www.gossamer-threads.com/lists/lvs/users/20871

hi,

i actually saw this before and followed it. i used packet mangling using 
iptables. the only difference is that i use direct routing since my 
servers are already on public IP.

i got this on my iptables

/sbin/iptables -t mangle -A PREROUTING -p udp -d 202.201.200.155 --dport 
5060 -j MARK --set-mark 2
/sbin/iptables -t mangle -A PREROUTING -p udp -d 202.201.200 --dport 
16834:32767 -j MARK --set-mark 2


FWM  2 rr persistent 600
   -> 202.201.200.131:0             Route   1      0          0
   -> 202.201.200.130:0             Route   1      0          0

but what i am experiencing right now is that i cant register, and doing 
a sip debug show that the auth header is missing.

any idea on where i should sart troubleshooting? thanks

regards,
ron



> 
> As for stripping out the auth header, that seems
> a little unlikely to me as LVS doesn't alter the
> contents of packets.
> 
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