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8017BPQ32 and 44.* addresses

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  • Miroslav Skoric
    Mar 14, 2012
      Hi,

      I have three BPQ32 machines in the home LAN and they talk each other by
      using bpqether ports. One machine has two network cards and the other
      two have one card each, so the box with two cards interconnect all three
      boxes in a 'chain', see the Figure:


      _____________ ______________ ______________
      VHF | BPQ32 4.10f | | BPQ32 4.10f | | BPQ32 4.10f |
      TRX-TNC2-| | -- | FPAC 3.28.18 |--|
      |
      ant |____________| |______________| |_____________|

      (1) (2)
      (3)

      192.168.1.2 <--> 192.168.1.1
      192.168.0.1 <-->
      192.168.0.2


      But I was told to use 44.* IP addresses for the AX.25 stuff in the LAN,
      instead of 192.168.* that I have been using now, see above. In fact, I
      want to interconnect one or two of those Win/BPQ32 comps with a Linux
      system running FPAC node (all comps are dual-boot Win/Lin). In regard to
      that, I managed to have my BPQ32 system(s) to 'see' the FPAC node(s).
      Although the nodes communicate at L2 and L3, I discovered some annoying
      traffic of FPAC filling up the BPQ32 monitoring screen. In fact, it
      continually sends multiple ARP Requests to the box (3), which is on the
      right side in the Fig. above:

      12:52:53R YT7MPB-15>QST Port=1 <UI> <ARP Request> Who Has 192.168.0.2?
      Tell 192.168.0.1
      12:52:54R YT7MPB-15>QST Port=1 <UI> <ARP Request> Who Has 192.168.0.2?
      Tell 192.168.0.1
      12:52:55R YT7MPB-15>QST Port=1 <UI> <ARP Request> Who Has 192.168.0.2?
      Tell 192.168.0.1
      12:52:57R YT7MPB-15>QST Port=1 <UI> <ARP Request> Who Has 192.168.0.2?
      Tell 192.168.0.1
      12:52:58R YT7MPB-15>QST Port=1 <UI> <ARP Request> Who Has 192.168.0.2?
      Tell 192.168.0.1

      ... and the similar traffic it sends to the box (1), on the left side in
      the Fig. above:

      12:52:59R YT7MPB-14>QST Port=1 <UI> <ARP Request> Who Has 192.168.1.2?
      Tell 192.168.1.1
      12:53:01R YT7MPB-14>QST Port=1 <UI> <ARP Request> Who Has 192.168.1.2?
      Tell 192.168.1.1
      12:53:02R YT7MPB-14>QST Port=1 <UI> <ARP Request> Who Has 192.168.1.2?
      Tell 192.168.1.1
      12:53:03R YT7MPB-14>QST Port=1 <UI> <ARP Request> Who Has 192.168.1.2?
      Tell 192.168.1.1
      ...etc ...

      To locate that strange issue, I rebooted the box in the middle to
      Win/BPQ32 again, and the production of those funny lines stopped (of
      course, until another reboot to Win/FPAC). Any idea?

      So, if it is needed to use 44.* IP addresses for the AX.25 stuff in the
      home LAN, instead of 192.168.* it makes me wonder how to do that with
      BPQ32 configuration.

      Misko
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