Re: [lwip-users] UDP server - answer problem

[Christiaan Simons]

address@hidden wrote on 21-09-2005
10:56:41:

> I have written a UDP server using RAW API (lwIP 0.5.3 - on linux).

That's ancient by now... you really should try a newer lwIP.

> tcp_dump:
> 08:48:01.998649 192.168.0.2.12024 > 192.168.0.1.12024: udp 25 (DF)
> 08:48:01.998680 192.168.0.1 > 192.168.0.2: icmp: 192.168.0.1 udp port
> 12024 unreachable [tos 0xc0]

Looks like 192.168.0.1 is not listening on port 12024...
This suggests there is something with your client application.

> My UDP client works OK with other non lwIP serwers :\ I do not have any
> problems with TCP send and recv under lwIP.

We use lwIP's UDP without problems.

Christiaan Simons

Software Engineer
Axon Digital Design

+31 (0)13 511 66 66
+31 (0)13 511 41 51

address@hidden
http://www.axon.tv



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