( Copy of big long thread under the qdn.publib.qnx4 entitled “QNX 4
Suppernetting or Route Adding” )
Bottom line is: Suppernetting does not work in Nto/Rpt either.
I need to set my netmask to 255.255.252.0 but my IP address would normally
be a class C address. Nto won’t let me grab two more bits from the third
byte.
Will this be fixed in the Patch A?
I don’t understand why this is an issue in the first place. An IP address
has a default netmask. If I am allowed to modify the netmask in one
direction (subnetting) why would the code be any different to modify the
netmask in the other direction (suppernetting)? It seems like it would take
extra code to prevent this.
I must admit, I can’t remember why this was left out of the
small stack. I remember there was a reason though…
For now though, you can use the full stack.
-seanb
Bill at Sierra Design <BC@sierradesign.com> wrote:
: ( Copy of big long thread under the qdn.publib.qnx4 entitled “QNX 4
: Suppernetting or Route Adding” )
: Bottom line is: Suppernetting does not work in Nto/Rpt either.
: I need to set my netmask to 255.255.252.0 but my IP address would normally
: be a class C address. Nto won’t let me grab two more bits from the third
: byte.
: Will this be fixed in the Patch A?
: I don’t understand why this is an issue in the first place. An IP address
: has a default netmask. If I am allowed to modify the netmask in one
: direction (subnetting) why would the code be any different to modify the
: netmask in the other direction (suppernetting)? It seems like it would take
: extra code to prevent this.
Previously, Bill at Sierra Design wrote in qdn.public.qnxrtp.os:
I don’t understand why this is an issue in the first place. An IP address
has a default netmask. If I am allowed to modify the netmask in one
direction (subnetting) why would the code be any different to modify the
netmask in the other direction (suppernetting)? It seems like it would take
extra code to prevent this.
That extra code, the implemenation of Class A,B, and C nets is probably
more fundamental than sub-neting. Just my 2 cents.
Mitchell Schoenbrun --------- maschoen@pobox.com