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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Research list: machine sometimes not visible on LAN

Posted by jpluimers on 2019/04/08

When one of the machine isn’t active for a while it seems to disappear. Even when it’s active some of the machines have intermittent errors pinging it as like every 10-30 seconds one of these ping results appear:

92 bytes from tl-er5120 (192.168.71.1): Redirect Host(New addr: 192.168.71.193)
Vr HL TOS  Len   ID Flg  off TTL Pro  cks      Src      Dst
 4  5  00 0054 05de   0 0000  40  01 644d 192.168.71.108  192.168.71.193

Sometimes even a simple

Request timeout for icmp_seq 6900

So I need to dig into  ICMP “Redirect Host” .

It might be a simple ARP thing like mac mini – Why the different results for ping? Or why is the Time Capsule getting involved? – Ask Different [WayBack] but like usual stuff I bump into is of a more complex kind so I’ve archived at least these:

–jeroen

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