i need serious help with tcp/ip config

i need serious help with tcp/ip config

Post by Hooloovo » Wed, 18 Mar 1998 04:00:00



could someone please help. i installed freeBSD and i am having major
trouble getting the network to function. i have the BSD machine and an
NT machine on a 10BaseT Ethernet. the BSD machine has an Intel
EtherExpress 16, which took a while to get configured, but now seems to
work properly. according to the freeBSD handbook, and the output from
ifconfig and netstat, everything should be working.

i believe the problem is NOT hardware, because if i reboot the BSD
machine into Win95 (uh! blasphemy!) both machines see each other just
fine.

here is--roughly--what i have tried so far:

ping from BSD
-------------
o no response
o kick off tcpdump in background, try again
  - now I see arp frames (who-has/tell)
o add NT arp entry on BSD, try again
  - now see ip frames (icmp echo request)
  - hub activity: Tx & Rx light BOTH ports
  - however no response comes back
  - NT shows no frames incoming

ping from NT
------------
o timed out
o start utility which shows frame type and count, but that's all
  (unfortunately i could not find an NT port of tcpdump), try again
  - now I see arp frames (i assume who-has/tell)
o add BSD arp entry on NT, try again
  - now see ip frames (i assume echo request)
  - hub activity: Tx light for BSD, Rx for NT (why only 2? and if so,
    i would expect them to be the other way around...)
  - no response comes back
  - BSD shows no frames incoming

does anybody have any ideas? i am kinda stuck...
TIA

--[ Hooloovoo ]-----------

 
 
 

i need serious help with tcp/ip config

Post by Kenneth Furg » Thu, 19 Mar 1998 04:00:00


I tried setting up a 2.2.5 machine recently with an EtherExpress 16 and
had similar problems.  Arps would appear to happen correctly but that
was all.  I ended putting in a different ethernet card (el-cheapo ne2000
compatible) and everything works OK now.

- K.C.


> could someone please help. i installed freeBSD and i am having major
> trouble getting the network to function. i have the BSD machine and an
> NT machine on a 10BaseT Ethernet. the BSD machine has an Intel
> EtherExpress 16, which took a while to get configured, but now seems to
> work properly. according to the freeBSD handbook, and the output from
> ifconfig and netstat, everything should be working.

> i believe the problem is NOT hardware, because if i reboot the BSD
> machine into Win95 (uh! blasphemy!) both machines see each other just
> fine.

> here is--roughly--what i have tried so far:

> ping from BSD
> -------------
> o no response
> o kick off tcpdump in background, try again
>   - now I see arp frames (who-has/tell)
> o add NT arp entry on BSD, try again
>   - now see ip frames (icmp echo request)
>   - hub activity: Tx & Rx light BOTH ports
>   - however no response comes back
>   - NT shows no frames incoming

> ping from NT
> ------------
> o timed out
> o start utility which shows frame type and count, but that's all
>   (unfortunately i could not find an NT port of tcpdump), try again
>   - now I see arp frames (i assume who-has/tell)
> o add BSD arp entry on NT, try again
>   - now see ip frames (i assume echo request)
>   - hub activity: Tx light for BSD, Rx for NT (why only 2? and if so,
>     i would expect them to be the other way around...)
>   - no response comes back
>   - BSD shows no frames incoming

> does anybody have any ideas? i am kinda stuck...
> TIA

> --[ Hooloovoo ]-----------


 
 
 

1. FTP, TCP/IP Serious Bug

I was using SCO unix as an Internet server for about a year and then
switched to Linux Slackware 0.99 and then to 1.0.  In both setups there
was a serious problem with users that use SLIP to connect to the Internet.

A user that connects to the Internet with SLIP from a DOS system runs into
trouble when connectin to my server.  No matter where the original SLIP
connect hooks up.  The user can connect directly to my system or be
connected to a SLIP server somewhere else in the world and still have this
problem.

The connections work but there is some sort of bug in the TCP/IP code that
causes NAK or ACK delay to pause all the time.  This is real bad when thay
use FTP because there is allways data loss at the end of the file that is
got.

This is not true for ALL SLIP connections.  SLIP works fine (GREAT) from
OS/2, Linux, KA9Q's NOS and from at least one version of UMN's Minuet SLIP.

These user tell me in no uncertain terms that it is NOT thier software
because they can connect to EVERYWHERE else with it.  (Including my old
SCO Unix server!)

What is wrong?
What can I do to help/fix this problem?

I have asked them to set thier window size to 2048 or more but this has not
helped.

I love this OS and would hate to dump it over a bunch of crappy DOS users
but I have to get it to work for them.

Thanks,
Richard Stuplich

(linux rules)

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