Re: [lwip-users] lwip reply delayed after long communication idle time

[Jochen Strohbeck]

Not giving up on this...
Although pinging 10 lwip's in a loop seems to work, from time to time I see
kind of these records in the Wireshark log:

Internet Control Message Protocol
    Type: 3 (*Destination unreachable*)
    Code: 2 (*Protocol unreachable*)
    Checksum: 0xfcfd [correct]
    [Checksum Status: Good]
    Unused: 00000000
    Internet Protocol Version 4, Src: 10.72.43.68, Dst: 10.72.43.1
    Internet Control Message Protocol

What does this mean and what can cause such an event?
The 10 lwip's are connected to a PC (10.72.43.1) via a switch.



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