Q:
Need help with what is required when they change Subnet mask?
Hi, I am new at this and need some help with what is reqired when they change Subnet mask
on the network that our AS/400 IBM System i Mod. 570 is connected to ?
What is required of me when this is to be done ?
on the network that our AS/400 IBM System i Mod. 570 is connected to ?
What is required of me when this is to be done ?
ASKED:
Oct 13 2008 7:08 AM GMT
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A:
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Hello,
When a change is done to the Subnet Mask, if you have only one default route (gateway),
you will need to go into CFGTCP, option 2 and change the subnet mask on the IP address.
It could take a while before the new IP
addresses are known to the other machines so you may need to flush the DNS cache...
To flush the DNS cache on the iSeries, enter the
CHGTCPDMN command without any parameters.
To do this on a Windows PC/Server :
on a Command Prompt :
ipconfig /flushdns
Hope this helps...
=================
This change impacts lot of things - printing & client terminal access, etc. Be sure that routes are properly setup to the new subnet so communications will continue with the new subnet mask.
