Hi Jiri,
As I mentioned before, I was not a big fan of ALG before. I tried ALG on some devices, too many problems. However I was pleasantly surprised that linksys has a good implementation, i.e. all the problems I had with other implementation doesn't have it here.
Just like Nathelper and mediaproxy are temporary fix which introduce extra media hop, nothing is perfect. Also I experience too many problems of using cpl with nathelper, trying to figure out how to not mess up with SDP if two phones behind the same NAT. Being able to access and play with the source code of linksys is certainly a big plug considering that we don't have access to source code of any hard phone.
In lieu of a perfect UA, I think this is least evil solution, if you think this way...
Richard
-----Original Message----- From: Jiri Kuthan [mailto:jiri@iptel.org] Sent: Monday, August 23, 2004 11:02 PM To: Richard; serusers@lists.iptel.org Subject: RE: [Serusers] NAT ping and consumer router
Hi Richard,
I'm not entirely happy I am so frequent disagreement initiatior in this thread but I don't like ALGs too much either. They have a bunch of issues, primarily they don't work with security and secondly they have a high potential for misimplementing the application logic. This has turned out to be true in quite many cases in the past. (Nevertheless good to hear there is a working linksys product.)
-jiri