[CLUE-Tech] Network Guru?

[Dave Price]

> Hello all, I need the input of a network guru:
> 
> I seem to recall that some of the fundamental rules at the IP layer is
> that:
> *	Every node on a subnet must have all it's network bits set 
appropriately
> in its IP address.
> *	Node must be to the right of the LSB of the network address
> 
> I've been told (by IT in my org) to use: 12.147.70.88/27 for a little
> embedded device.  This doesn't make sense to me...
> 	12.147.70.88  = 12.147.70.01011000
> network	12.147.70.224 = 12.147.70.11100000
> (last octets in bin, duh..)
> 

You need a subnet mask of 255.255.255.224 ...
and a default gateway of a 'router' on the same subnet - IP address the 
same out to the subnet address - i.e. 
between 12.147.70.89 and 12.147.70.118

For a quick table of /dd to 'standard' netmasks, see: 
http://kinaole.org/subnet.html

aloha,
dave    -   davep at kinaole.org  -  303.777.1938
#!/usr/bin/perl
print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);