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28/03/2006, 17h57

Thoschi <tschindler2000@hotmail.com> wrote:
> Hi, (Win2000, VC++, SuSe 9.2)
> I want to send UDP-telegramms from a Windows 2000 to a Linux PC.

If you want to send telegrams I'd suggest Western Union, but alas,
they stopped sending telegrams a while ago.

Meanwhile, as for
sending UDP datagrams:

> Port and Adresse ar OK, but the Linux Application didn't get it.

> Running tcp_dump on the Linux PC shows:
> IP 172.16.8.227 > 172.16.8.109: icmp 104: 172.16.8.109 udp port 3000
> unreachable

That suggests there was no socket open and bound to port 3000 on the
linux system, perhaps one or more of the calls in your linux receiver
didn't do quite what you expected it to - an strace of the application
may see. When you are running the Linux receiver, can you see
the socket in the output of netstat -an | grep 3000 ?

Is there any firewall running on the Linux system?

rick jones
--
oxymoron n, Hummer H2 with California Save Our Coasts and Oceans plates
these opinions are mine, all mine; HP might not want them anyway...

feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH...

28/03/2006, 17h57	#3
Rick Jones Messages: n/a Hébergeur:	Re: UDP from Windows to Linux Thoschi <tschindler2000@hotmail.com> wrote: > Hi, (Win2000, VC++, SuSe 9.2) > I want to send UDP-telegramms from a Windows 2000 to a Linux PC. If you want to send telegrams I'd suggest Western Union, but alas, they stopped sending telegrams a while ago. Meanwhile, as for sending UDP datagrams: > Port and Adresse ar OK, but the Linux Application didn't get it. > Running tcp_dump on the Linux PC shows: > IP 172.16.8.227 > 172.16.8.109: icmp 104: 172.16.8.109 udp port 3000 > unreachable That suggests there was no socket open and bound to port 3000 on the linux system, perhaps one or more of the calls in your linux receiver didn't do quite what you expected it to - an strace of the application may see. When you are running the Linux receiver, can you see the socket in the output of netstat -an \| grep 3000 ? Is there any firewall running on the Linux system? rick jones -- oxymoron n, Hummer H2 with California Save Our Coasts and Oceans plates these opinions are mine, all mine; HP might not want them anyway... feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH...