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08-22-2000 01:33 PM
08-22-2000 01:33 PM
Is it possible to configure HP-UX 10.2 and/or 11.0 to allow subnet zero? For example, we would like to configure an HP9000 as follows:
IP Address: 150.230.2.4
Subnet mask: 255.255.252.0
Gateway: 150.230.3.254
This would give us a network of 150.230.0.1 through 150.230.3.253.
IP Address: 150.230.2.4
Subnet mask: 255.255.252.0
Gateway: 150.230.3.254
This would give us a network of 150.230.0.1 through 150.230.3.253.
Solved! Go to Solution.
2 REPLIES 2
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08-22-2000 02:21 PM
08-22-2000 02:21 PM
Solution
Bill,
You can stop HP-UX from imposing subnet validation as per RFC 1122 as follows:-
10.20 (needs latest ARPA patch):-
nettune -s ip_check_subnet_addr 0
Needs to be called in a startup script before 'net'.
11.00 ndd -set /dev/ip ip_check_subnet_addr 0
May be added to /etc/rc.config.nddconf but check that this is actioned before 'net'.
Hope this helps.
John
You can stop HP-UX from imposing subnet validation as per RFC 1122 as follows:-
10.20 (needs latest ARPA patch):-
nettune -s ip_check_subnet_addr 0
Needs to be called in a startup script before 'net'.
11.00 ndd -set /dev/ip ip_check_subnet_addr 0
May be added to /etc/rc.config.nddconf but check that this is actioned before 'net'.
Hope this helps.
John
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08-25-2000 12:30 PM
08-25-2000 12:30 PM
Re: Zero Subnetting
Thank you for your correct response. I am glad I got yours first becuase the others were either incorrect or a class on subnet masking that was not responsive to our question.
We found one glitch, the netstat -r command does not seem to understand zero-subnetting, all other functions work fine after following your instructions.
The netstat handg for 15 seconds (or so) and returns bogus network info for the host we are on.
We found one glitch, the netstat -r command does not seem to understand zero-subnetting, all other functions work fine after following your instructions.
The netstat handg for 15 seconds (or so) and returns bogus network info for the host we are on.
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