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Trying to get VoIP Shaper correct BETA3

Traffic Shaping
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  • D
    datafirm
    last edited by Apr 19, 2006, 3:01 AM

    Let me explain my setup, I think there are still a few issues that we can iron out.

    Running BETA3 acting as router/firewall

    On the LAN I have an asterisk server 192.168.0.40.

    Server has multiple IAX2 connections to remote hosts
    Multiple phones on LAN connect to asterisk server through SIP (not port 5060)

    Here is my traffic shaper setup:
    Prioritize VoIP traffic
    Set Generic (low delay)
    Set IP address to 192.168.0.40
    Do not categorize any other traffic

    Here are the results:
    Making outbound calls half the traffic goes to the 'qVOIPUp' queue other half gets routed to 'qlanacks'
    Incoming calls will usually split the traffic to 'qVOIPUp' and 'qVOIPDown'.
    When I say usually to the above, what I mean is that when I connect to my IVR and type in my extension it will split the traffic between the two VoIP queues.  However, if I call a DID that routes directly to my extension I get the same behavior as outbound calls.

    Perhaps there is an issue with the NAT or the IAX2 connections that is not routing the traffic correctly?

    Hope this helps, let me know if you need me to do some tests.

    Thanks!

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    • S
      sullrich
      last edited by Apr 19, 2006, 3:04 AM

      Try using an alias to dephine your phones.  Search for forum, its been covered a couple times in the last month.

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      • D
        datafirm
        last edited by Apr 19, 2006, 3:17 AM

        @sullrich:

        Try using an alias to dephine your phones.  Search for forum, its been covered a couple times in the last month.

        So you want to prioritize the traffic to the phones, not the asterisk box?

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        • S
          sullrich
          last edited by Apr 19, 2006, 3:19 AM

          You can put the asterisk box in the alias too, ;)

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          • D
            datafirm
            last edited by Apr 19, 2006, 3:24 AM

            @sullrich:

            You can put the asterisk box in the alias too, ;)

            That is what I had originally.  That's why I tried to explain the problem in detail.

            Any more ideas?

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            • D
              datafirm
              last edited by Apr 19, 2006, 3:26 AM

              @sullrich:

              Try using an alias to dephine your phones.  Search for forum, its been covered a couple times in the last month.

              Isn't it strange that a full stream of traffic from the phone/server is getting put in qlanacks?

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              • S
                sullrich
                last edited by Apr 19, 2006, 3:39 AM

                Seems strange yes, its working great here.

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                • D
                  datafirm
                  last edited by Apr 19, 2006, 4:11 AM

                  @sullrich:

                  Seems strange yes, its working great here.

                  Do you have a similar setup to what I described above?

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                  • S
                    sullrich
                    last edited by Apr 19, 2006, 4:16 AM

                    No, I have one that I described.

                    Phone and pbx subnet is in an alias and I use it during the wizard in the red field.

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                    • D
                      datafirm
                      last edited by Apr 19, 2006, 5:24 AM

                      @sullrich:

                      No, I have one that I described.

                      Phone and pbx subnet is in an alias and I use it during the wizard in the red field.

                      FYI - Aliases in the red field have never worked for me.

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                      • H
                        hoba
                        last edited by Apr 19, 2006, 6:23 AM

                        The payload usually runs from one phonenedpoint to the other phonenedpoint. Not all the VOIP-Traffic derives from the Asterisk only. I suggest doing some research by viewing either pftop from the shellmenu or doing some etherealing. I guess you are simply missing to assign some devices/traffic to the right queue.

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                        • D
                          datafirm
                          last edited by Apr 19, 2006, 5:23 PM

                          @hoba:

                          The payload usually runs from one phonenedpoint to the other phonenedpoint. Not all the VOIP-Traffic derives from the Asterisk only. I suggest doing some research by viewing either pftop from the shellmenu or doing some etherealing. I guess you are simply missing to assign some devices/traffic to the right queue.

                          I was checking out the pftop in shell (rate view) and the items on top (there was no other real activity) were these two:

                          
                          udp   Out 192.168.0.40:4569     72.34.43.5:4569        11596  2146K  2:2    152    60  19296  20148  14463 97 72.51.3.185:54987   
                          udp   In  192.168.0.40:4569     72.34.43.5:4569        11596  2146K  2:2    152    60  19296  20148  14463 14
                          
                          

                          That is my asterisk box to the IAX2 proxy.  Strangely I did not see any traffic coming from the phone (perhaps because of NAT?).  I am still stuck with only part of my traffic getting queued.

                          Here is how I have setup my shaper:

                          http://img109.imageshack.us/my.php?image=picture13go.png

                          And the alias (phones and asterisk box)

                          http://img428.imageshack.us/my.php?image=picture24hb.png

                          You would think this would be enough?

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                          • H
                            hoba
                            last edited by Apr 20, 2006, 5:14 AM

                            According to your pftop output the asterix is the only box that is talking to the outside. In case you are using IAX this is ok as the asterisk does protocol transformation (your phones most likely talk SIP I guess). Have you tried resetting the states? In case there were connections that were there before you edited the queues those will remain in the originally assigned queue when the connection was established.

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                            • D
                              datafirm
                              last edited by Apr 20, 2006, 5:43 AM

                              @hoba:

                              According to your pftop output the asterix is the only box that is talking to the outside. In case you are using IAX this is ok as the asterisk does protocol transformation (your phones most likely talk SIP I guess). Have you tried resetting the states? In case there were connections that were there before you edited the queues those will remain in the originally assigned queue when the connection was established.

                              Yes, all communications to our providers our done through IAX2.  The phones to talk through SIP on the LAN.

                              I always reset the state when I've been messing with the Shaping.

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                              • K
                                kwag
                                last edited by Sep 8, 2006, 7:14 AM

                                Hello all!,

                                I'm having a similar problem with RC2, which I didn't have with BETA 3.
                                My  "qVOIPDown" displays correctly while I'm processing a VoIP call on my Asterisk box (IP=10.0.0.10).
                                However, the "qVOIPUp"  stays at zero, but the "qwanacks" shows the upload activity!

                                After veryfying a call with tcpdump targetted to my destination point (another Asterisk box), here's a small sample of what I get:

                                
                                02:05:29.902050 IP 196.32.xxx.xxx.4569 > 10.0.0.10.4569: UDP, length 54
                                02:05:29.906252 IP 10.0.0.10.4569 > 196.32.xxx.xxx.4569: UDP, length 54
                                02:05:29.935439 IP 10.0.0.10.4569 > 196.32.xxx.xxx.4569: UDP, length 54
                                02:05:29.942519 IP 196.32.xxx.xxx.4569 > 10.0.0.10.4569: UDP, length 54
                                

                                So it's clear that my box at 10.0.0.10 is talking with the destination on port 4569 UDP, as it should.

                                I have a  shaper rule, actually the first rule under "Firewall: Shaper: Rules", that is set like this:

                                
                                In Interface: LAN
                                Out Interface: WAN
                                Source: (Alias) Asterisk -> 10.0.0.10
                                Source port range: 4569
                                Destination: Any
                                Destination port range: Any
                                

                                So that rule should match anything out of my Asterisk box using IAX2 protocol on port 4569, but it doesn't!
                                Is this a bug?
                                As I said, this didn't happen on BETA 3. It is happening on RC2.

                                Thanks,
                                -Karl

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                                • H
                                  hoba
                                  last edited by Sep 8, 2006, 8:09 AM

                                  Did you make changes to your trafficshaper configuration after the states for your asterisk where generated? If yes try resetting the state table as traffic is assigned to queues on creating a state only.

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                                  • K
                                    kwag
                                    last edited by Sep 8, 2006, 12:09 PM Sep 8, 2006, 12:08 PM

                                    @hoba:

                                    Did you make changes to your trafficshaper configuration after the states for your asterisk where generated? If yes try resetting the state table as traffic is assigned to queues on creating a state only.

                                    Hi hoba,

                                    Yes, I did reset the states after I created the shaping, and I even did a reset on my Asterisk procesess (killed and restarted) just to make sure new sockets were created.
                                    As a matter  of fact, I recall I even reset the Asterisk machine just to make sure!
                                    Still, I can not get the UDP upstream to hit the qVOIPUpload queue  ::)
                                    But it worked on BETA 3, so I'm really baffled  ???

                                    -Karl

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                                    • H
                                      hoba
                                      last edited by Sep 8, 2006, 12:28 PM

                                      @kwag:

                                      I have a  shaper rule, actually the first rule under "Firewall: Shaper: Rules", that is set like this:

                                      
                                      In Interface: LAN
                                      Out Interface: WAN
                                      Source: (Alias) Asterisk -> 10.0.0.10
                                      Source port range: 4569
                                      Destination: Any
                                      Destination port range: Any
                                      

                                      Is that your only rule for the Asterisk traffic? That's only one direction. You need a second rule for the other direction. I suggest rerunning the trafficshaperwizard and entering the IP of the Asterisk at the VOIP page. It should create the correct rules. Reset states after that and retest.

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                                      • K
                                        kwag
                                        last edited by Sep 8, 2006, 4:16 PM

                                        @hoba:

                                        @kwag:

                                        I have a  shaper rule, actually the first rule under "Firewall: Shaper: Rules", that is set like this:

                                        
                                        In Interface: LAN
                                        Out Interface: WAN
                                        Source: (Alias) Asterisk -> 10.0.0.10 
                                        Source port range: 4569
                                        Destination: Any
                                        Destination port range: Any
                                        

                                        Is that your only rule for the Asterisk traffic? That's only one direction. You need a second rule for the other direction. I suggest rerunning the trafficshaperwizard and entering the IP of the Asterisk at the VOIP page. It should create the correct rules. Reset states after that and retest.

                                        The other part, the download queue, is already created and works fine. That part actually works with the "ToS" field set to "lowdelay".
                                        But the Upload queue doesn't work, even as default settings from the wizard, which indeed set the rule to match with the "ToS" field.

                                        -Karl

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                                        • S
                                          sullrich
                                          last edited by Sep 8, 2006, 5:10 PM

                                          You will have better luck if you define an alias that includes all of the host ip addresses that communicate via voip.  Include the ip address of the phone and the other endpoint (public address if need be).

                                          In my case the voice over ip system terminates on a IPSEC connection so both of the ips in my alias are private.  But if you where using vonage or another carrier then the one IP address would most likely be public, etc.

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