[PARPORT] Need help with PLIP in laptop.

Roberto Jimeno (jimeno@pc6.politicas.unam.mx)
Mon, 3 Jan 2000 13:26:58 -0600

       Even though my two machines (a laptop and a desktop) plip
       interfaces seems to be configured and connected correctly,
       ping between them fail. Can someone help me to fix this

       Here are the details about my configuration:

root@desktop /root]# cat /etc/conf.modules
alias parport_lowlevel parport_pc
options parport_pc io=0x378 irq=7

    Laptop has the same conf.modules, but it is not starting plip
    until I type "insmod plip". Notice printers work fine in both
    machines right after booting. Both parallel ports are in ECP mode.

[[root@desktop /root]# lsmod
Module Size Used by
plip 8648 1
parport_pc 5624 1
parport 7124 1 (autoclean) [plip parport_pc]

    lsmod in both machines is very similar.

    Interface configuration is this:

[[root@desktop /root]# ifconfig
lo Link encap:Local Loopback
          inet addr: Mask:
          UP LOOPBACK RUNNING MTU:3924 Metric:1
          RX packets:34 errors:0 dropped:0 overruns:0 frame:0
          TX packets:34 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0

plip0 Link encap:Ethernet HWaddr FC:FC:C0:A8:00:80
          inet addr: P-t-P:
          RX packets:28 errors:0 dropped:3 overruns:0 frame:0
          TX packets:21 errors:5 dropped:0 overruns:0 carrier:5
          collisions:0 txqueuelen:10
          Interrupt:7 Base address:0x378

    ifconfig is very similar in both, but it has 128 instead of 127
    and vice-versa.

    Routing is like this:

root@desktop /root]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface * UH 0 0 0 plip0 * U 0 0 0 lo

        Ince again, the laptop has a 128 in place of the 127 in the desktop.

    Ping on this side of the interface works fine, but ping to the
    other side loses 100% of the messages. I'm using a laplink cable.

    Please help me. I'm kind of lost with this 2.2.12-20 kernel of my
    RedHat 6.1 distribution.

 -- Roberto Jimeno. -- From the book `SmallTalk With Style' :
Leave at least one blank before a left parenthesis and after a right parenthesis.
 LocalWords: Jimeno SmallTalk

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This archive was generated by hypermail 2.0b3 on Tue 04 Jan 2000 - 03:52:17 EST