I've had no qualms in the past using the Juniper SIP ALG, which surprised me given how bad every other vendor's is, even with Cisco Java based handsets (which are painful at best). You do need to disable it for TCP, though.

Craig Askings <mailto:caski...@ionetworks.com.au>
14 March 2014 8:29 am
As wary as I am suggesting anything to do with ALGs, have you considered
letting the SIP ALG on the SRX pin hole through the RTP sessions as needed
for each call?

That and rewriting SIP packets to account for NAT are it's main functions


On 12 March 2014 22:04, Skeeve Stevens <



Skeeve Stevens <mailto:skeeve+juniper...@eintellegonetworks.com>
12 March 2014 8:04 pm
Hi all,

I have an SRX at a customer which has an Avaya voip system. We require
external access for SIP softphones.

The Avaya people are asking for like 500+ ports to be opened on NAT, to
which I said no.

Does anyone here have experience with the X One system and NAT through SRX?

...Skeeve

*Skeeve Stevens - *eintellego Networks Pty Ltd
ske...@eintellegonetworks.com ; www.eintellegonetworks.com

Phone: 1300 239 038; Cell +61 (0)414 753 383 ; skype://skeeve

facebook.com/eintellegonetworks ; <http://twitter.com/networkceoau>
linkedin.com/in/skeeve

twitter.com/theispguy ; blog: www.theispguy.com


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