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- Newsgroups: comp.sys.novell
- Path: sparky!uunet!mcsun!sunic!psinntp!psinntp!dg-rtp!webo!dg-webo!ctam
- From: ctam@nodisk.webo.dg.com (Henry Tam)
- Subject: Need help on IP tunneling
- Sender: usenet@webo.dg.com (Usenet Administration)
- Message-ID: <CTAM.92Nov20155746@nodisk.webo.dg.com>
- Date: 20 Nov 92 15:57:46
- Distribution: comp.sys.novell
- Organization: NSDD, Data General Corp.
- Lines: 97
-
-
- I have a question on IP tunneling and hope someone here can answer it
- for me. You help will be greatly appreciated.
-
- I have a native NetWare v3.11 server running TCP/IP and the IP
- tunneling lan driver. A PC running LanWorkPlace for DOS v4.01 with
- IPTUNNEL.EXE loaded continuously copies files from the server to the
- hard disk and vice versa. The test would fail within 12 hours with
- a network error:
-
- "Network error on YY: Error receiving from network.
- Abort, Retry?"
-
- Of all the instances that it failed, the PC was issuing either NCP
- read or NCP write requests(I looked at the packets using a network
- sniffer). A series of read/write requests were going fine and then
- the PC started to issue a read/write request repeatedly even though
- the server serviced the request and responded OK to the PC. It seems
- to me that the PC either didn't get the packets or the packets weren't
- what the PC expected. However, the sniffer showed that the packets
- were well formed. This problem can be reproduced pretty consistently.
- Everything will work fine if the PC is a regular DOS client(with no
- LanWorkPlace and IP tunneling driver) and I use the following test
- configuration:
-
- PC ----- SERVER1 ===== SERVER2
-
- ---- a regular DOS network
- ==== IP tunnel
-
- The PC reads/writes files on SERVER2 repeatedly.
-
- Has anyone encountered a similar problem? I've tried the
- test with NE2000 and 3Com EtherLink II 3C503 on 286's and 386's. The
- batch file that I used in my test is as follows:
-
-
- map f:=sys:
- :loop
- ncopy f:\login c:\iptest1
- dir c:\iptes1
- ncopy c:\iptest1 f:\iptest1
- dir f:\iptest1
- goto loop
-
-
-
- This is how I set up IP tunneling on the server(there's no peer server):
-
- load iptunnel
- bind ipx to iptunnel net=80ddf499
-
-
- This is how I set up the PC:
-
- AUTOEXEC.BAT:
-
- prompt $p$g
- set path=c:\;c:\dos;c:\odi;c:\xln\bin40
- lsl
- ne2000
- tcpip
- iptunnel
- ipxodi
- netx
- c:\xln\bin40\convert
- c:\xln\bin40\telapi
- set name=pc-60
- set excelan=c:\xln
- break on
-
-
- CONFIG.SYS
-
- files = 30
- buffers = 30
- shell = c:\command.com /e:1024 /p
- lastdrive = e
-
-
-
-
- Thanks!
-
- --
- ------
- -----------------------------------------------------------------------
- | Chi Hang Tam | henry_tam@dg.com |
- | call me Henry... | chi_hang_tam@dg.com |
- | Data General Corporation | |
- | Network Systems Development Division | (508) 870-8274 |
- | | |
- | //|\\ |
- ------------------------UUU-----O O-----UUU----------------------------
- U
- \_/
-
-