Hi all, I'm trying to communicate between two computers, said A and B,
with PLIP (Parallel Line IP). It works correct(both can ping each
other) when both run the PLIP on the physical host os, so the cable
and the configurations should be correct. Then I tried to connect
between physical os and KVM virtualization os, it doesn't work this
time, and kernel dumps error message. Here are my steps:

// config PLIP in A
host-A # modprobe plip
host-A # ipconfig plip0 A pointopoint B netmask 255.255.255.255 up

// prepare parport0 in B, and startup guest-B
host-B # modprobe ppdev
host-B # kvm guest-B.img --parallel /dev/parport0

// config PLIP in guest-B
guest-B # modprobe plip
guest-B # ipconfig plip0 B pointopoint A netmask 255.255.255.255 up

guest-B # ping A
plip0: transmit timeout (1,86)
plip0: transmit timeout (1,86)
plip0: transmit timeout (1,86)
plip0: transmit timeout (1,86)
plip0: transmit timeout (1,86)
plip0: transmit timeout (1,86)
...


Any idea or had anyone succeeded on this?
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