Subnetting 192.168.10.0/24
Ashley M. Kirchner
ashley at pcraft.com
Sat Sep 29 17:38:55 UTC 2007
I want to give each department in our building their own subnet and
I'm a bit confused on how to get that done.
Right now I have everything under the full range:
----------
authoritative;
subnet 192.168.10.0 netmask 255.255.255.0
range 192.168.10.5 192.168.10.250; # .1 - .4, .251 - .255 reserved
max-lease-time 86400;
default-lease-time 57600;
min-lease-time 300;
option routers 192.168.10.1;
option broadcast-address 192.168.10.255;
option domain-name-servers 192.168.10.1;
option ip-forwarding off;
ddns-update-style interim;
ignore client-updates;
# Static Rats
group {
host server_1 { hardware ethernet 11:11:11:11:11:11;
fixed-address 192.168.10.11; }
host server_2 { hardware ethernet 22:22:22:22:22:22;
fixed-address 192.168.10.12; }
host server_3 { hardware ethernet 33:33:33:33:33:33;
fixed-address 192.168.10.13; }
}
# Shippping Kernels
group {
host fedex { hardware ethernet 44:44:44:44:44:44; }
host ups { hardware ethernet 55:55:55:55:55:55; }
host rep_1 { hardware ethernet 66:66:66:66:66:66; }
host rep_2 { hardware ethernet 77:77:77:77:77:77; }
}
# Sales Bullies
group {
host sales_1 { hardware ethernet 88:88:88:88:88:88; }
host sales_2 { hardware ethernet 99:99:99:99:99:99; }
}
}
----------
What I'd like to do is give each group their own range, for example:
# Shipping Kernels gets 192.168.10.32/255.255.255.240 (.32 - .47)
# Sales Bullies gets 192.168.10.48/255.255.255.240 (.48 - .63)
etc., etc.
However, they would all still need to route through the same router
192.168.10.1.
Do I simply specify a range within each group and hope for the
best? Or do I nix the global subnet{} statement and set each group{}
with its own subnet? How does routing work then since each group{}
would have it's own broadcast ip?
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