[Serusers] UDP Fragmentation Problem

[Andrei Pelinescu-Onciul]

On Oct 30, 2004 at 01:28, Bastian Schern <ml01 at in-bln.de> wrote:
> Hi everybody,
> 
> I've got no success to get a friend in Bogota (Colombia) connected to my 
> SER. He has got a ISDN Internet connection and the UDP packets will be 
> fragmented. It seems that the MTU of this connection is round about 400 
> to 500 Bytes. Therefore most UDP-SIP packages are fragmented.
> Is SER not able to handle fragmented UDP packages?

The packets are defragmented by the ip stack of the OS, so ser doesn't
really care if they arrive fragmented or not.

> Is it possible to use SIP over TCP with X-Lite?
> Or has somebody another hint for me?

If you plan to use TCP, keep in mind that nat traversal won't work (if
you use it).


Andrei