[Kamailio-Users] Multiple SIP Proxy Environment / Socket Information
Brandon Armstead
brandon at cryy.com
Sat May 2 00:19:52 CEST 2009
Daniel,
I got this part working, in the case of the absence of $du (i.e. no
received parameter) I just exclude it and all works well! Thanks guys!
* fixed reply to all.
On Thu, Apr 30, 2009 at 1:16 AM, Daniel-Constantin Mierla <miconda at gmail.com
> wrote:
> Hello,
>
> On 04/29/2009 08:35 PM, Brandon Armstead wrote:
>
>> Daniel,
>>
>> You are correct it is not set for this usrloc. Should I be able to
>> just not modify $du in this case?
>>
>
> I do not understand what you mean now?!?!
>
> Cheers,
> Daniel
>
> Thanks!
>>
>> On Wed, Apr 29, 2009 at 7:39 AM, Daniel-Constantin Mierla <
>> miconda at gmail.com <mailto:miconda at gmail.com>> wrote:
>>
>> Hello,
>>
>> $du is set by usrloc only if there is a received value in the
>> location record. Can you check if you have it in db?
>>
>> Cheers,
>> Daniel
>>
>>
>>
>> On 04/29/2009 11:45 AM, Brandon Armstead wrote:
>>
>> Daniel,
>>
>> Yes I'm doing an append_hf("X-Duri: $du\r\n"); inside of
>> branch_route[] i.e.:
>>
>> branch_route[2]
>> {
>> if(isbflagset(4)){
>> # thats me!
>> } else {
>> # at this point X-Duri is null, so we are not saving it
>> from the lookup?
>> # we need to save this to pass onto Proxy B, however
>> the value is NULL at this point, and at the point of Proxy B
>> (when received).
>> append_hf("X-Duri: $avp(s:duri)\r\n");
>> if(isbflagset(6)){
>> $du = "sip:PROXY_B;transport=udp;";
>> }
>> }
>>
>> xlog("L_INFO", "[$ci][branch_route][$T_branch_idx] ru=$ru
>> fu=$fu tu=$tu si=$si flag=$bF du=$du");
>> }
>>
>> Then when X-Duri reaches Proxy B, if I see the INVITE comes
>> from Proxy A, I take X-Duri and restore "$du" with the correct
>> value.
>>
>> However this is causing issues now as the value is <null>,
>> I've tried saving $du into avp after looking up usrloc, I've
>> tried simply calling $du in branch_route[], and I've tried
>> saving $du in loose_route() into an avp, all to no avail.
>>
>> What am I missing here as far as passing the value of $du from
>> branch route to header, to pass along to Proxy B.
>>
>> Thanks again!
>>
>> On Wed, Apr 29, 2009 at 2:42 AM, Daniel-Constantin Mierla
>> <miconda at gmail.com <mailto:miconda at gmail.com>
>> <mailto:miconda at gmail.com <mailto:miconda at gmail.com>>> wrote:
>>
>>
>>
>> On 04/29/2009 11:32 AM, Brandon Armstead wrote:
>>
>> Daniel,
>>
>> It looks like you helped me find part of the problem,
>> apparently Proxy A was sharing same branch flag as the
>> one I
>> used to distinguish which proxy it was. I corrected
>> this and
>> now branch flag for branch 1 is 00000060, and branch 2 is
>> 00000040, however now both branches are routed
>> appropriately
>> to the correct server, however the X-Duri (to restore to in
>> the INVITE) is null.
>>
>>
>> I may not followed all discussion branch - the X-Duri is a
>> header
>> you append to the message? If yes, it is not visible
>> immediately
>> in the script, but you can see it when the messages is ent
>> to the
>> network.
>>
>> Do I need to save this value into an AVP after
>> lookup("location")?
>>
>>
>> What you need to do with it? Where is its values taken from?
>>
>> Cheers,
>> Daniel
>>
>> Or should it be readily available in branch_route[],
>> and for
>> some reason my variable is null?
>>
>> P.S. (recap)
>> Proxy A NAT Branch Flag: 5
>> Proxy B NAT Branch Flag: 5
>>
>> (Problem existed as used Flag 5 to distinguish "itself" as
>> proxy) -- changed this to 4 so now:
>>
>> Proxy A NAT Branch Flag: 4
>> Proxy B NAT Branch Flag: 6
>>
>> Calls are routed to Proxy B
>>
>> X-Duri: <null> (as it is null in Proxy A). I'm
>> append_hf(X-Duri: $du) inside of branch_route[].
>>
>> Thanks!
>>
>> On Wed, Apr 29, 2009 at 2:17 AM, Daniel-Constantin Mierla
>> <miconda at gmail.com <mailto:miconda at gmail.com>
>> <mailto:miconda at gmail.com <mailto:miconda at gmail.com>>
>> <mailto:miconda at gmail.com <mailto:miconda at gmail.com>
>> <mailto:miconda at gmail.com <mailto:miconda at gmail.com>>>> wrote:
>>
>>
>>
>> On 04/29/2009 11:11 AM, Brandon Armstead wrote:
>>
>> Daniel,
>>
>> No that would be the UAC (I have two clients
>> behind the
>> same NAT). The problem is it looks like the
>> branch flag is
>> not being set for both for some reason (when
>> comparing)
>> even
>> though in the database it is the same?
>>
>>
>> So you have the brach flag for nat and branch flags
>> for next
>> proxy, right? What is the value of branch flag? The
>> value are
>> different indeed, but some flags you are looking
>> for might be
>> set. It is easier spot if you print the hexa format
>> of the
>> flags
>> rather than decimal one.
>>
>> Cheers,
>> Daniel
>>
>> Take a look at the flag= value from each of
>> those logs
>> (this
>> is one call) to a UAC with two registrations
>> line1/line2.
>>
>> On Wed, Apr 29, 2009 at 2:02 AM,
>> Daniel-Constantin Mierla
>> <miconda at gmail.com <mailto:miconda at gmail.com>
>> <mailto:miconda at gmail.com <mailto:miconda at gmail.com>>
>> <mailto:miconda at gmail.com <mailto:miconda at gmail.com>
>> <mailto:miconda at gmail.com <mailto:miconda at gmail.com>>>
>> <mailto:miconda at gmail.com
>> <mailto:miconda at gmail.com> <mailto:miconda at gmail.com
>> <mailto:miconda at gmail.com>>
>> <mailto:miconda at gmail.com <mailto:miconda at gmail.com>
>> <mailto:miconda at gmail.com <mailto:miconda at gmail.com>>>>> wrote:
>>
>> Hello,
>>
>>
>> On 04/29/2009 10:53 AM, Brandon Armstead wrote:
>>
>> Hey guys,
>>
>> Still facing a few challenges and
>> seeing if
>> any further
>> input, I'm specifically trying inaki's
>> suggestions /
>> method,
>> but here are the current problems:
>>
>> sip:/etc/kamailio/m4cfgs# tail -f
>> /var/log/openser.log
>> | grep
>> -v -E 'non-local|repeated' | grep
>> branch_route
>> Apr 29 07:38:05 db06 /sbin/kamailio[21279]:
>> [77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>>>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>>>>][branch_route][1]
>> ru=sip:CALLEE at 99.XX.XX.XX:5079
>> fu=sip:CALLER at sip.example.com<sip%3ACALLER at sip.example.com>
>> <mailto:sip%3ACALLER at sip.example.com<sip%253ACALLER at sip.example.com>
>> >
>> <mailto:sip%3ACALLER at sip.example.com<sip%253ACALLER at sip.example.com>
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> >>
>> <mailto:sip%3ACALLER at sip.example.com<sip%253ACALLER at sip.example.com>
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> >
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> >>>
>> <mailto:sip%3ACALLER at sip.example.com<sip%253ACALLER at sip.example.com>
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> >
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> >>
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> >
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> <mailto:sip%2525253ACALLER at sip.example.com<sip%252525253ACALLER at sip.example.com>
>> >>>>
>> <mailto:sip%3ACALLER at sip.example.com<sip%253ACALLER at sip.example.com>
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> >
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> >>
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> >
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> <mailto:sip%2525253ACALLER at sip.example.com<sip%252525253ACALLER at sip.example.com>
>> >>>
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> >
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> <mailto:sip%2525253ACALLER at sip.example.com<sip%252525253ACALLER at sip.example.com>
>> >>
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> <mailto:sip%2525253ACALLER at sip.example.com<sip%252525253ACALLER at sip.example.com>
>> >
>> <mailto:sip%2525253ACALLER at sip.example.com<sip%252525253ACALLER at sip.example.com>
>> <mailto:sip%252525253ACALLER at sip.example.com<sip%25252525253ACALLER at sip.example.com>
>> >>>>>
>>
>>
>>
>>
>> tu=sip:CALLEE at sip.example.com<sip%3ACALLEE at sip.example.com>
>> <mailto:sip%3ACALLEE at sip.example.com<sip%253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%3ACALLEE at sip.example.com<sip%253ACALLEE at sip.example.com>
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> >>
>> <mailto:sip%3ACALLEE at sip.example.com<sip%253ACALLEE at sip.example.com>
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> >>>
>> <mailto:sip%3ACALLEE at sip.example.com<sip%253ACALLEE at sip.example.com>
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> >>
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> <mailto:sip%2525253ACALLEE at sip.example.com<sip%252525253ACALLEE at sip.example.com>
>> >>>>
>> <mailto:sip%3ACALLEE at sip.example.com<sip%253ACALLEE at sip.example.com>
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> >>
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> <mailto:sip%2525253ACALLEE at sip.example.com<sip%252525253ACALLEE at sip.example.com>
>> >>>
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> <mailto:sip%2525253ACALLEE at sip.example.com<sip%252525253ACALLEE at sip.example.com>
>> >>
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> <mailto:sip%2525253ACALLEE at sip.example.com<sip%252525253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%2525253ACALLEE at sip.example.com<sip%252525253ACALLEE at sip.example.com>
>> <mailto:sip%252525253ACALLEE at sip.example.com<sip%25252525253ACALLEE at sip.example.com>>>>>>
>> si=99.XX.XX.XX
>>
>>
>>
>>
>> flag=96 du=<null>
>>
>>
>> This call is not sent to Proxy B (this is a
>> result of bflag
>> not being set) ???
>>
>> is the proxy B at 99.XX.XX.XX:5079? If not,
>> then set
>> $du to the
>> address of that proxy. It is null in the log
>> above.
>>
>> Cheers,
>> Daniel
>>
>> My question is "Why", I look at the AOR /
>> usrloc and
>> they both
>> have the "same exact flags set", this call is
>> rather sent
>> directly to UAC endpoint.
>>
>> ---
>>
>> Apr 29 07:38:05 db06 /sbin/kamailio[21279]:
>> [77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>>>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>
>> <mailto:77e4c600-147767fb at 172.16.1.35
>> <mailto:77e4c600-147767fb at 172.16.1.35>>>>>][branch_route][2]
>> ru=sip:CALLEE at 99.XX.XX.XX:5062
>> fu=sip:CALLER at sip.example.com<sip%3ACALLER at sip.example.com>
>> <mailto:sip%3ACALLER at sip.example.com<sip%253ACALLER at sip.example.com>
>> >
>> <mailto:sip%3ACALLER at sip.example.com<sip%253ACALLER at sip.example.com>
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> >>
>> <mailto:sip%3ACALLER at sip.example.com<sip%253ACALLER at sip.example.com>
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> >
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> >>>
>> <mailto:sip%3ACALLER at sip.example.com<sip%253ACALLER at sip.example.com>
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> >
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> >>
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> >
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> <mailto:sip%2525253ACALLER at sip.example.com<sip%252525253ACALLER at sip.example.com>
>> >>>>
>> <mailto:sip%3ACALLER at sip.example.com<sip%253ACALLER at sip.example.com>
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> >
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> >>
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> >
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> <mailto:sip%2525253ACALLER at sip.example.com<sip%252525253ACALLER at sip.example.com>
>> >>>
>> <mailto:sip%253ACALLER at sip.example.com<sip%25253ACALLER at sip.example.com>
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> >
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> <mailto:sip%2525253ACALLER at sip.example.com<sip%252525253ACALLER at sip.example.com>
>> >>
>> <mailto:sip%25253ACALLER at sip.example.com<sip%2525253ACALLER at sip.example.com>
>> <mailto:sip%2525253ACALLER at sip.example.com<sip%252525253ACALLER at sip.example.com>
>> >
>> <mailto:sip%2525253ACALLER at sip.example.com<sip%252525253ACALLER at sip.example.com>
>> <mailto:sip%252525253ACALLER at sip.example.com<sip%25252525253ACALLER at sip.example.com>
>> >>>>>
>>
>>
>>
>>
>> tu=sip:CALLEE at sip.example.com<sip%3ACALLEE at sip.example.com>
>> <mailto:sip%3ACALLEE at sip.example.com<sip%253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%3ACALLEE at sip.example.com<sip%253ACALLEE at sip.example.com>
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> >>
>> <mailto:sip%3ACALLEE at sip.example.com<sip%253ACALLEE at sip.example.com>
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> >>>
>> <mailto:sip%3ACALLEE at sip.example.com<sip%253ACALLEE at sip.example.com>
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> >>
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> <mailto:sip%2525253ACALLEE at sip.example.com<sip%252525253ACALLEE at sip.example.com>
>> >>>>
>> <mailto:sip%3ACALLEE at sip.example.com<sip%253ACALLEE at sip.example.com>
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> >>
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> <mailto:sip%2525253ACALLEE at sip.example.com<sip%252525253ACALLEE at sip.example.com>
>> >>>
>> <mailto:sip%253ACALLEE at sip.example.com<sip%25253ACALLEE at sip.example.com>
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> <mailto:sip%2525253ACALLEE at sip.example.com<sip%252525253ACALLEE at sip.example.com>
>> >>
>> <mailto:sip%25253ACALLEE at sip.example.com<sip%2525253ACALLEE at sip.example.com>
>> <mailto:sip%2525253ACALLEE at sip.example.com<sip%252525253ACALLEE at sip.example.com>
>> >
>> <mailto:sip%2525253ACALLEE at sip.example.com<sip%252525253ACALLEE at sip.example.com>
>> <mailto:sip%252525253ACALLEE at sip.example.com<sip%25252525253ACALLEE at sip.example.com>>>>>>
>> si=99.XX.XX.XX
>>
>>
>>
>>
>> flag=64 du=sip:PROXY_B;transport=udp;
>>
>>
>> This call is sent to Proxy B (however
>> Proxy B) -
>> however the
>> X-Duri (is null) as it is not existant in
>> Proxy
>> A's branch
>> route? should I save this from right
>> after the
>> lookup("location") result into an avp?
>>
>>
>> Again, thank you for all and any help,
>> thanks!
>>
>> On Mon, Apr 27, 2009 at 5:42 PM, Brandon
>> Armstead
>> <brandon at cryy.com
>> <mailto:brandon at cryy.com> <mailto:brandon at cryy.com
>> <mailto:brandon at cryy.com>>
>> <mailto:brandon at cryy.com <mailto:brandon at cryy.com>
>> <mailto:brandon at cryy.com <mailto:brandon at cryy.com>>>
>> <mailto:brandon at cryy.com
>> <mailto:brandon at cryy.com> <mailto:brandon at cryy.com
>> <mailto:brandon at cryy.com>>
>> <mailto:brandon at cryy.com <mailto:brandon at cryy.com>
>> <mailto:brandon at cryy.com <mailto:brandon at cryy.com>>>>
>> <mailto:brandon at cryy.com
>> <mailto:brandon at cryy.com>
>> <mailto:brandon at cryy.com <mailto:brandon at cryy.com>>
>> <mailto:brandon at cryy.com <mailto:brandon at cryy.com>
>> <mailto:brandon at cryy.com <mailto:brandon at cryy.com>>>
>> <mailto:brandon at cryy.com
>> <mailto:brandon at cryy.com> <mailto:brandon at cryy.com
>> <mailto:brandon at cryy.com>>
>> <mailto:brandon at cryy.com <mailto:brandon at cryy.com>
>> <mailto:brandon at cryy.com <mailto:brandon at cryy.com>>>>>> wrote:
>>
>> Klaus, Inaki, Daniel,
>>
>> Thanks! Sorry I did not see this
>> email come
>> through, I'm
>> going to go ahead and give this method
>> a go,
>> and I'll
>> update with
>> the results, I have optimistic views.
>>
>> As for the reason I was rewriting $ru and
>> setting $du to
>> null, is
>> because originally when I just changed
>> $du to the
>> 'destination
>> proxy' it did not seem to work at all
>> (I do
>> not even
>> recall
>> what
>> exactly what was happening) however I
>> decided
>> to just
>> change $ru,
>> and have the other proxy just "lookup"
>> the usrloc
>> information
>> again. Again, this method looks
>> interesting and
>> I'll let
>> you guys
>> know how it goes, thanks for all the input
>> and help!
>>
>> Sincerely,
>> Brandon.
>>
>>
>> On Fri, Apr 24, 2009 at 1:18 AM, Klaus
>> Darilion
>> <klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>>>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>>>>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>>>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>>>>>> wrote:
>>
>>
>>
>> Brandon Armstead schrieb:
>>
>> Klaus,
>>
>> So I took you and Inaki's
>> input and
>> essentially
>> constructed a setup like so
>> after the
>> lookup("location") call:
>>
>> if(isbflagset(1)){
>> $du = null;
>> $rd = "P1";
>> } else if(isbflagset(2)){
>> $du = null;
>> $rd = "P2";
>> } else if(isbflagset(3)){
>> $du = null;
>> $rd = "P3";
>> } else if(isbflagset(4)){
>> $du = null;
>> $rd = "P4";
>> }
>>
>>
>> 1. The above code has to be in the
>> branch_route
>> block -
>> otherwise multiple registrations
>> of a single
>> user are not
>> handled correctly.
>>
>> 2. you are rewriting the RURI. You
>> should
>> not do
>> that
>> as some
>> clients wants to the in the RURI
>> the Contact
>> provided
>> during
>> REGISTER.
>>
>> 3. probably you use
>> fix_nated_register() to
>> store the
>> public
>> IP:port of the client too. After
>> lookup, this
>> information is
>> written to DURI. Thus, by setting
>> $du you
>> overwrite
>> this info.
>> You should put it into a special
>> header
>> so that
>> you can
>> restore it in the other proxy.
>>
>> Here a snippet how it should work
>> (untested, no
>> warranty): ( I
>> use the term "originating" proxy
>> for the
>> proxy which
>> received
>> the INVITE and the term "serving"
>> proxy
>> for the
>> proxy which
>> handles the
>> connection/registration of a
>> certain SIP
>> client).
>>
>> e.g:
>> Alice -----INVITE----->
>> P1------->P2----->Bob2
>> / \
>> / \
>> / V
>> V
>> P3---->Bob3
>> Bob1
>>
>> Bob's client Bob1 is connected to P1.
>> Bob's client Bob2 is connected to P2.
>> Bob's client Bob3 is connected to P3.
>>
>> So, P1 is the originating proxy.
>> P2 is the
>> serving proxy of
>> Bob2. ....
>>
>> We do NAT traversal (note: we must
>> not call
>> fix_nated_contact() for messages sent
>> between the
>> proxies!):
>> the originating proxy for the
>> call-leg to the
>> caller, the
>> serving proxy for the call-leg to
>> the callee.
>> The RTP proxy will be managed by the
>> originating
>> proxy
>> only.
>>
>>
>>
>> route{
>> if (loose_route()) {
>> ... additional loose route
>> processing...
>> if
>> (check_route_param("rtpproxy=yes")) {
>> force_rtp_proxy();
>> setbflag(7);
>> }
>>
>> # downstream: in-dialog request is in
>> the same
>> direction as the
>> # initial request
>> if (
>> (check_route_param("nat=caller") &&
>> is_direction("downstream"))
>> ||
>> (check_route_param("nat=callee") &&
>> is_direction("upstream"))) {
>> fix_nated_contact();
>> } else if
>> (check_route_param("nat=both") {
>> fix_nated_contact();
>> setbflag(8);
>> } else {
>> setbflag(8);
>> }
>>
>> t_on_reply("1");
>> t_relay();
>> exit();
>> }
>> ...
>>
>> # I am proxy 1
>> if ((src_ip=ip.of.proxy.2) ||
>> (src_ip=ip.of.proxy.3)...) {
>> # request comes from other proxy,
>> that
>> means I
>> am the
>> # serving proxy
>> # do not lookup(), RURI is
>> already set and
>> # DURI is provided in our X-DURI
>> header
>> $du = $header(X-DURI);
>> # we do not care about an RTP
>> proxy because
>> that's the
>> task
>> of the
>> # proxy which performed the
>> lookup() (the
>> originating
>> proxy)
>> # add some record-route cookie to
>> mark
>> that we
>> should
>> perform
>> # SIP NAT traversal for the callee
>> add_rr_param(";nat=callee");
>> # activate reply_route to
>> fix_nated_contact of
>> callee
>> setbflag(8); # flag 8 = fix contact
>> t_on_reply("1");
>> record_route();
>> t_relay();
>> exit;
>> }
>>
>> ...
>> # a new request - thus I am the
>> originating proxy
>>
>> if ($dU looks like phone number) {
>> ... route to Gateway....
>> exit;
>> }
>>
>> if (!lookup("location")) {
>> sl_send_reply("404","not found");
>> exit;
>> }
>> # activate branch route to have
>> dedicated
>> routing per
>> branch
>> t_on_branch("1");
>>
>> # activate reply route to activate
>> RTP proxy
>> t_on_reply("1");
>>
>> # NAT traversal
>> fix_nated_contact();
>>
>> record_route();
>> t_relay();
>> exit;
>> }
>>
>> branch_route[1]{
>> if(isbflagset(1)){
>> # oh, that's me
>>
>> # add some record-route cookie
>> to mark
>> that we
>> should
>> perform
>> # SIP NAT traversal for the
>> callee and
>> caller
>> add_rr_param(";nat=both");
>>
>> # add some record-route cookie
>> to mark
>> that we are
>> # in charge for the RTP proxy
>> add_rr_param(";rtpproxy=yes");
>>
>> force_rtp_proxy();
>> setbflag(7); # flag 7 = RTP proxy
>> } else {
>> # add some record-route cookie
>> to mark
>> that we
>> should
>> perform
>> # SIP NAT traversal for the caller
>> add_rr_param(";nat=caller");
>>
>> # we have to route the request
>> to the
>> serving
>> proxy
>> # write DURI in the header
>> append_hf("X-DURI: $du");
>> if(isbflagset(2)){
>> $du =
>> sip:ip.of.proxy.2;transport=udp;
>> } else if(isbflagset(3)){
>> $du =
>> sip:ip.of.proxy.3;transport=udp;
>> } else if(isbflagset(4)){
>> $du =
>> sip:ip.of.proxy.4;transport=udp;
>> }
>> }
>> }
>>
>> reply_route[1]{
>> if (isbflagset(7) &&
>> has_body("application/sdp")) {
>> force_rtp_proxy()
>> }
>> if (isbflagset(8)) {
>> fix_nated_contact()
>> }
>> }
>>
>>
>>
>> Note: this code does not care
>> about the
>> received
>> socket
>> of the
>> proxy. Thus it works if the proxy
>> listens
>> only
>> on one port.
>>
>> regards
>> klaus
>>
>>
>> On each Proxy, I changed the code
>> appropriately
>> excluding
>> the Proxy from itself (so it
>> does not
>> forward to
>> itself).
>> I'm noticing weird behavior
>> however
>> as it
>> seems as if
>> what is happening is it
>> created other
>> issues
>> such as:
>>
>> [INCOMING SERVER] -> P1 -> P2
>> -> P1
>> -> (loop?)
>>
>> Also I setup this test amongst two
>> development
>> servers (in
>> which case it worked without
>> issues).
>> Once I
>> included in
>> more development instances
>> into the
>> ring it
>> seemed
>> as if
>> the flags were being set when
>> they should
>> not be?
>>
>> I.e. I placed a call FROM UA1
>> (with
>> bflag 5 SET)
>> From the
>> above example configuration ^
>> code.
>> If you
>> notice
>> (flag
>> 5) is missing. To UA2 (Flag 3),
>> again this
>> looked
>> to be
>> doing some strange things such as
>> acting as
>> if another
>> flag was set when it should
>> not have
>> been, thus
>> forwarding
>> to the wrong proxy or the
>> wrong proxy
>> order. Do
>> you guys
>> have any further thoughts or
>> input on
>> this?
>> Thanks!
>>
>> On Thu, Apr 23, 2009 at 12:31 AM,
>> Klaus Darilion
>> <klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>>>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>>>>
>> <mailto:
>> klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists at pernau.at>
>> <mailto:klaus.mailinglists at pernau.at
>> <mailto: <klaus.mailinglists at pernau.at>
>>
> ...
>
> [Message clipped]
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