Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 17 Aug 1995 00:58:58 -0700
From:      Mark Diekhans <markd@grizzly.com>
To:        questions@freebsd.org
Subject:   Problems with an parallel TCP/IP interface.
Message-ID:  <199508170758.AAA00526@Grizzly.COM>

next in thread | raw e-mail | index | archive | help


Does anyone have any suggestions on how to debug this problem with the
lp TCP/IP driver on FreeBSD 2.0?

I have a laplink cable between two parallel ports.  Laplink works
fine.  BSD detects:

        Aug 17 00:17:14 osprey kernel: lpt0 at 0x3bc-0x3c3 irq 7 on isa
        Aug 17 00:17:14 osprey kernel: lpt0: Interrupt-driven port
        Aug 17 00:17:14 osprey kernel: lp0: TCP/IP capable interface

When I try to ping over lp0 the *other* system gets the error:

        lp0: Too many errors, Going off-line.

netstat -i returns

Name  Mtu   Network     Address            Ipkts Ierrs    Opkts Oerrs  Coll
lp0   1500  <Link>                             0   101        1    24     0
lp0   1500  lp-net      10.0.0.1               0   101        1    24     0
lo0   65532 <Link>                          1553     0     1553     0     0
lo0   65532 local-net   localhost.0.0.1     1553     0     1553     0     0

the other side indicates that it got 1 input packet.

Since tcpdump isn't supported by the lp driver, I am at loss on how to
proceed.  Any ideas?

Thanks,
Mark <markd@grizzly.com>



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199508170758.AAA00526>