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Polycom VSX 7000 not working with Private IP

tayyab831@gmail.com
Regular Visitor

Polycom VSX 7000 not working with Private IP

 

Hi,

 

I am facing a problem with polcycom VSX 7000 equipment software version 8.7.1, issue is given below,

 

We are unable to connect a call while using Private IPs or (local network) but we are able to make conference call using Public IPs.

 

I added static NAT or allowed used IP from Firewall after all it is not working. Could you please look into this? Thank you.

 

 

Regards,

 

Tayyab

Message 1 of 6
5 REPLIES 5
Kendo
Polycom Employee

Re: Polycom VSX 7000 not working with Private IP

 

Here’s how I explain the function:

 

If the NAT is 323 compatible is checked, the unit is putting the ‘real’ IP address at both layer 3 and layer 7 of the packet.

 

If it is unchecked, the unit puts the ‘real’ IP address in L3 and the WAN IP in L7 of the packet.

 

NAT is compatible is extremely close, in real-world function, to having no NAT settings at all. When it is checked, the unit is depending on the firewall to intercept the packets & do the L3 NAT (change internal IP to external IP/vice-versa), as well as open the payload of the packet, determine if there is anything ‘to do’ (such as determine if it is an H245 packet and alter the IP address/port numbers contained therein) & do whatever is necessary.

When not checked, the codec has the simple thought process of: “the firewall here is dumb, so I have to put the WAN IP in the payload part so this call will work”

 

The layer 3 part of the packet, regardless of the NAT settings, is the same as it would not work otherwise.

 

This is a firewall issue. Try checking the box for 'Nat is H323 compatible' and place the call.

If it then allows internal calls (note you will not be able to make external calls) then your firewall is not H323 compatible. 

Ken
Polycom
Sr. Product Support Technician
Message 2 of 6
tayyab831@gmail.com
Regular Visitor

Re: Polycom VSX 7000 not working with Private IP

Dear Ken,

 

Thank you so much for your reply, I am still facing problem that’s why I want to tell you my brief scenario how i am working,

 

We created a test scenario in which there is no firewall

Polycom is behind the router

Router is performing the NAT functionality after that I did the below exercises,

  • First enable NAT 323 compatible is checked
  • Second enable NAT 323 compatible is unchecked

In both of above cases I am unable to  call, kindly can you please help me  am I working correctly or I have need  to make changing   to place a successful call ?

 

Regards,

Tayyab

Message 3 of 6
sumit1212
Occasional Visitor

Re: Polycom VSX 7000 not working with Private IP

Hi Team,

 

Please let me know which firewall port should open at fortiget firewall to connect VC .

Message 4 of 6
sumit1212
Occasional Visitor

Re: Polycom VSX 7000 not working with Private IP

Hi Team,

 

I am using polycom vsx 700 behind fortiget firewall.

 

let me know list of port to access the VC through public IP.

Message 5 of 6
Mike_v
Honored Contributor

Re: Polycom VSX 7000 not working with Private IP

Take a look at VSX Admin's Guide -> Annex C: Port Usage.

 

WBR,
Mike
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“Reports that say that something hasn't happened are always interesting to me, because as we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns- the ones we don't know we don't know.”
― Donald Rumsfeld
Message 6 of 6