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тАО11-26-2009 03:32 AM
тАО11-26-2009 03:32 AM
Subnet Mask
This has a DE600 network card installed.
The Subnet Mask of this TCPIP setup is 255.255.255.0
When a 2nd DS20E (containing a DE500 network card) is restored with the identical system image of the 1st Alpha there are problems when starting up TCPIP. (eg You cannot Ping the 2nd Alpha IP addresses.) The 2nd Alpha is on a totally seperate network.
Any Ideas?
Why does the differing types of card have an effect on
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тАО11-26-2009 04:25 AM
тАО11-26-2009 04:25 AM
Re: Subnet Mask
It would be helpful if more complete information were supplied (e.g., which TCPIP package, and the full characteristics of the interfaces on BOTH systems -- in HP TCP/IP the results of the SHOW INTERFACES/FULL command). A display of the routing information is also useful (e.g., TCPIP SHOW ROUTE).
There are many reasons the systems may be unable to establish communications. The subnet mask is a possibility, but not necessarily the most likely suspect.
Possible problems that I have seen in similar situations include duplicate IP addresses, filtered networks, disconnected networks, and a variety of other causes.
The only way to disambiguate what is happening is to review the details in order to ascertain where the problem lies.
- Bob Gezelter, http://www.rlgsc.com
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тАО11-26-2009 06:41 AM
тАО11-26-2009 06:41 AM
Re: Subnet Mask
Run the configuration tool for the particular IP stack.
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тАО11-26-2009 08:20 AM
тАО11-26-2009 08:20 AM
Re: Subnet Mask
the DE600 device would be VMS device EIA0, IP interface device IE0.
the DE500 device would be VMS device EWA0, IP interface device we0
On the second DS20e you will not have a configuration for we0 - only one for the non-existant ie0.
As Hoff says, run your TCPIP configuration utility.
Duncan
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тАО11-30-2009 08:28 AM
тАО11-30-2009 08:28 AM
Re: Subnet Mask
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тАО11-30-2009 08:52 AM
тАО11-30-2009 08:52 AM
Re: Subnet Mask
Which is the standard case encountered when reloading an OpenVMS box with a different network controller configuration; swapping network hardware configurations around does mean you'll usually need to re-run the stack-specific configuration.
Run the configuration tool for the particular IP stack.
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тАО11-30-2009 11:41 AM
тАО11-30-2009 11:41 AM
Re: Subnet Mask
You have two choices:
- rerun the TCP/IP config as suggested already;
- Get a DE600 for the second system and replace the DE500 with it.
Even if you replace the DE500 with a DE600, you're still relying on the hardware being presented in the same way (i.e. that the card that was IE0 is still IE0)
Upshot?
You're probably still best (and it's cheapest) rerunning the TCPIP$CONFIG and resetting your address to be on the right ethernet card.