Hi everybody.
Can anybody shed some light on the difference in NAT between ROS 4.X An ROS 5.X.
We see completely different behavior in Fax over IP setups with common ATA’s between version.
Seems like T.38 breaks when being src-nat (masquerade) by version ROS 4
ROS 5 looks much closer to working in the same scenario.
I am very interested to know the difference.
different kernel, different programs, many things upgraded and improved
Thank You Normis.
We are having issues to get T.38 Faxing working properly through NATted connections.
Do you know if v 5 Solves the problem completely of broken T.38 (udptl)?
I would love some more info as we have a few thousand of these to do. I have googled for any changes in iptable’s implimentation but have drawn a blank.
The closest i can find is nf_conntrack_sip which is in 2.6.34?
Keep up the good work!
I found v5 working better for faxing too.. for unknown reasons 
NAT helper was updated, so no wonder it works good now.
Thank you for including this update. Can’t remember anybody ever feature requested this.
Found the info @ http://kernelnewbies.org/Linux_2_6_34
Hi,
we have no problem with fax T.38 with 4.x ROS, but with ROS 5.x we cannot send or receive faxes. Any idea?
Thank you