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Voip ports and things

 
 
Pete @ www.GymRatZ.co.uk
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      09-02-2007
Hi All,
I have Draytek vg2910 dual WAN router with 2 ADSL accounts active.
I would like to force all VOIP traffic over the "backup" ADSL service
and everything else over the primary service.

The router allows for port or ports and Protocol(TCP, UDP, TCP/UDP,
ICMP, IGMP) to be forced to either WAN1 or WAN2.

Can anyone tell me which ports/protocols I would need to force Accounts
to register and VOIP Traffic all to go to the back-up WAN ?

Cheers
Pete
 
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Linker3000
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      09-02-2007
Pete @ www.GymRatZ.co.uk wrote:
> Hi All,
> I have Draytek vg2910 dual WAN router with 2 ADSL accounts active.
> I would like to force all VOIP traffic over the "backup" ADSL service
> and everything else over the primary service.
>
> The router allows for port or ports and Protocol(TCP, UDP, TCP/UDP,
> ICMP, IGMP) to be forced to either WAN1 or WAN2.
>
> Can anyone tell me which ports/protocols I would need to force Accounts
> to register and VOIP Traffic all to go to the back-up WAN ?
>
> Cheers
> Pete


As a rule with Asterisk, the suggested ranges used are as follows:

SIP: 5004-5082 (do TCP and UDP although you're probably only using UDP)
RTP: 10000-20000 (UDP)

You may not need the following unless you are using IAX (eg linking two
Asterisk servers together or have IAX-based phones):

IAX: 4569 (UDP)
IAX2: 5036 (UDP)

Go have a looksee:
http://www.voip-info.org/tiki-index....firewall+rules

When messing around with QoS on a Draytek 2600+, I found that specifying
QoS bandwidth by ports used was hit and miss and in the end I just gave
priority to traffic to and from our VoIP server's IP address - dunno if
the same will apply for WAN routing but can you not just say traffic
to/from <this-ip-address> should go via WANx?

HTH
 
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Thomas Kenyon
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      09-03-2007
Linker3000 wrote:

>
> IAX: 4569 (UDP)
> IAX2: 5036 (UDP)
>

Err, excuse me for being a pedant, but that should read:

IAX: 5036 (UDP)
IAX2: 4569 (UDP)
 
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alexd
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      09-03-2007
Thomas Kenyon wrote:

> Linker3000 wrote:
>
>>
>> IAX: 4569 (UDP)
>> IAX2: 5036 (UDP)
>>

> Err, excuse me for being a pedant, but that should read:
>
> IAX: 5036 (UDP)
> IAX2: 4569 (UDP)


And continuing the theme of pedantry, it's highly unlikely anyone will be
using IAX, as it's deprecated in favour of IAX2.

http://en.wikipedia.org/wiki/Inter-Asterisk_eXchange

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Linker3000
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      09-03-2007
Thomas Kenyon wrote:
> Linker3000 wrote:
>
>
>>IAX: 4569 (UDP)
>>IAX2: 5036 (UDP)
>>

>
> Err, excuse me for being a pedant, but that should read:
>
> IAX: 5036 (UDP)
> IAX2: 4569 (UDP)


Thanks for that.
 
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Pet - www.GymRatZ.co.uk
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      09-04-2007
Linker3000 wrote:
Thanks all for the response.

> When messing around with QoS on a Draytek 2600+, I found that specifying
> QoS bandwidth by ports used was hit and miss and in the end I just gave
> priority to traffic to and from our VoIP server's IP address - dunno if
> the same will apply for WAN routing but can you not just say traffic
> to/from <this-ip-address> should go via WANx?


I have tried the Qos feature and it makes very littl edifference.
As I found out further today when a VPN connection is being experimented
with and has been left set to "always on" at the remote end it has a
drastic effect on VOIP data on the same WAN port.

Also when I am uploading large files via FTP this also can scupper VOIP,
so if I can set it for the accounts and all VOIP data alone to only go
through the backup connection on WAN2 of which 1GB + 1/GB thereafter I
may as well do that and know I have a dedicated stream which nothing
else will effect.

Re: your last point, the DraytekVG2910 has the 2 VOIP ports built in so
there is no seperate IP address unlike a dedicated unit.

Cheers
Pete

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Pet - www.GymRatZ.co.uk
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      09-04-2007
Pet - www.GymRatZ.co.uk wrote:

> Re: your last point, the DraytekVG2910 has the 2 VOIP ports built in so
> there is no seperate IP address unlike a dedicated unit.


And to follow up......
I have just looked in the settings for each SIP account and there I
jound the choice of registering through "auto" LAN1 or LAN2 !

DOH!

--
http://gymratz.co.uk - Fitness & Gym Equipment/nutrition specialists.
http://www.water-rower.co.uk - The ultimate rowing simulator.
http://www.BBE-Boxing-Equipment.co.uk - New Boxing Equipment site.
http://www.commercial-gym-equipment.co.uk - Commercial Gym Equipment.
 
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