Hello All. I am using using mono to send udp packets between two hosts. At some point, one host may go offline. If I watch the network (using ethereal) I see the UDP packet go from A->B, and host B responds with a ICMP destination unreachable packet. However, I don't see how I can get access to that packet in my application.
I was hoping that SendTo or ReceiveFrom could throw exceptions, but I don't believe that is how they work. I also tried to make a separate socket to listen for the ICMP packets, but under Linux and Mono 0.30, I get an exception when I try to create the socket to listen for ICMP messages: Unhandled Exception: System.Net.Sockets.SocketException: Access denied in (unmanaged) /usr/local/lib/libmono.so.0(mono_raise_exception+0x1f) [0x4009176f] in (unmanaged) /usr/local/lib/libmono.so.0 [0x400b1d7d] in <0x00054> System.Net.Sockets.Socket:.ctor (System.Net.Sockets.AddressFamily,System.Net.Sockets.SocketType,System.Net.Sockets.ProtocolType) in <0x000d3> Gnucla.UdpEdgeListener:.ctor (int) in <0x001b0> Gnucla.EchoTest:Main (string[]) Can anyone suggest a method that host A can see that host B is no longer listening without doing it at the application layer? I just want the ICMP packet to have an effect. Thanks. POB -- [EMAIL PROTECTED] http://pobox.com/~boykin jabber: [EMAIL PROTECTED] fingerprint=D250 4AD9 4544 B7D2 A17C 911D D608 D387 6718 D75F fix copyright: http://cyberlaw.stanford.edu/lessig/blog/archives/EAFAQ.html
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