RTP Protocol number

Greetings,

I need to implement some qos into a sonicwall tz-200. It is done with Ethernet bandwith management. I need to add my VOIP services to a firewall access rule and to  garantee bandwith.

I need to know what is the protocol number of RTP. We're currently using a Nortel BCM50 and I need to garantee port 28000-28511 in UDP and RTP.

Thank you
tblincAsked:
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jfaubiontxCommented:
You just need to open UDP ports 28000-28511. A range is used and the exact port is negotiated during the call setup.
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tblincAuthor Commented:
I'm not sure that you understand my question correctly.

I want to apply some QOS rules. I don't need to open some ports. I just want to know which protocol / ports I need to match to apply my qos on my sonicwall tz200.

I don't have any option to match dscp or cos/tos.

I need to create firewall bandwith management rules to priorize my voip.

I saw that the nortel BCM use port 28000-28511 (UDP/RTP). I created a rule for the udp port but I need to create another rule for RTP and I don't know what is the RTP Protocol number.

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jfaubiontxCommented:
Your probably right that I did not fully understand your question. I also have very limited experience with the TZ-200 so I probably can't answer the question of how to enable QOS in the Sonicwall. However there is no RTP protocol number. The default port for RTP is 554 but the BCM uses UDP ports 28000-28511 for RTP traffic. This is why Nortel refers to these ports as (UDP/RTP). Also keep in mind that unless your setting up a VPN between a pair of Sonicwall routers, any tagging you do will likely be eliminated once the packets reach the next hop. In the past I have simply allocated dedicated bandwidth to my UDP ports to ensure my other traffic did not step on my RTP traffic. Some routers also support SIP ALG to dynamically. However my experience with the TZ series was that "SIP Transformations" did not work correctly and thus had to be unchecked.
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tblincAuthor Commented:
All right, thanks

"Also keep in mind that unless your setting up a VPN between a pair of Sonicwall routers"

Yes, my traffic will be into a site to site ipsec tunnel. So my qos will be lan -> vpn

Thanks that answered my question
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tblincAuthor Commented:
thanks
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