configuring subnet mask on a K class

[Mohamed Elhammar]

symptom: the system stops during boot up at "nfs client ...." while using
255.255.248.0 subnet mask
and it boots up normally when using 255.255.255.0
and then i change the subnet mask to 255.255.248.0
i use 10.20 HP-UX with the last patchs
thanx for help!

[Berlene Herren_1]

What you are trying to do, is violating RFC1122 and using RFC1878 instead.
These two RFC's are not compatible. Running RFC1878 nodes on an RCF1122
network could result in serious problems, like broadcast storms etc...
HP is RFC1122 compliant.

run nettune -s ip_check_subnet_addr 0

Then try to assign the 255.255.248.0 address.

For 10.X, nettune changes do not do not survive reboots! Create a startup file
in /sbin/rc2.d typically /sbin/rc2.d/S341nettune that runs the nettune(s) that
you need.

Berlene