Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Connection Problem (HP-UNIX_ WIN98)

Posted on 2001-07-03
7
Medium Priority
?
340 Views
Last Modified: 2013-12-06
We have 5 NT Servers and 1 HP-UNIX box. 125+ users running Win98 with 3 remote locations using T1 and Frame Relay. When there is a "Hicup" in the Frame or T1 and connection is lost, the users who were conected to an application running on the HP-UNIX box, are then "Blind" to the UNIX box, meaning can't even ping the IP of the UNIX. All of the servers and other workstations can be pinged. Connectivity can be restored by either rebooting the HP-UNIX box or letting it time out (3 hours). Is this problem inherant with UNIX connecting with Win98 and is there a fix for it.

Thanks
0
Comment
Question by:WorthIS
  • 4
  • 3
7 Comments
 
LVL 14

Expert Comment

by:chris_calabrese
ID: 6249050
Is the HP-UX box running 11.x?  And is the 'hicup' causing the HP box not to be able to ping the gateway to some of your nets?  If so, this may be cause by HP's "dead gateway detection mechanism".  I can't remember how to turn this off, but a quick call to HP support will do the trick (you do have a support contract...)

The only other thing I can think of is that it's some other type of routing problem like one of your routers sending route updates when the link is down, but not sending subsequent updates when the link comes back up.
0
 

Author Comment

by:WorthIS
ID: 6249228
Chris,

We are running Ver 10.2 ,this problem is quirky because anyone remote who was not connected to the HP during the down-time (Hicup), but yet still logged into the network is able to connect to the app. w/ no prob. So that really leaves out the routing problem right?

0
 
LVL 14

Expert Comment

by:chris_calabrese
ID: 6249279
That definitely leaves out the routing problem, at least on the HP-UX side.

Are you guys using proxy ARP?  Maybe the machines talking to the HP-UX box during the hiccup are getting bad ARP cache entries.
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 14

Accepted Solution

by:
chris_calabrese earned 300 total points
ID: 6249283
Or perhaps they are getting ICMP destination unreachable's and their stacks are setting these routes as down until the route entries time out.  Search the MS knowledge base for a bug of this type (or the ARP timeout type).
0
 

Author Comment

by:WorthIS
ID: 6250020
Chris,

Thanks....I think that you kinda hit the jackpot....

Once again thanks and have a safe and happy 4th
0
 

Author Comment

by:WorthIS
ID: 6250023
Great help.....
0
 
LVL 14

Expert Comment

by:chris_calabrese
ID: 6250042
Glad I could help.
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When you do backups in the Solaris Operating System, the file system must be inactive. Otherwise, the output may be inconsistent. A file system is inactive when it's unmounted or it's write-locked by the operating system. Although the fssnap utility…
Introduction Regular patching is part of a system administrator's tasks. However, many patches require that the system be in single-user mode before they can be installed. A cluster patch in particular can take quite a while to apply if the machine…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
In a previous video, we went over how to export a DynamoDB table into Amazon S3.  In this video, we show how to load the export from S3 into a DynamoDB table.

886 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question