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ip subnet zero
stanley4le
how the h3ll does this work ?
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Noods
http://www.cisco.com/warp/public/105/40.html
dissolved
turn it on by ip-subnet zero in config mode
example
Router (gateway)
|
| <
192.168.10.0 /30
|
Firewall
This gives us 2 usuable addresses. Which is the usual gig for connecting infrastructure devices. One for the router's internal interface. One for the firewalls external interface. The usuable IPs are 192.168.10.1 and 192.168.10.2. 192.168.10.0 is the network address. 192.168.10.3 is the broadcast address.
If we didnt have ip subnet zero support, we wouldnt be able to use that address space. We would have to start on 192.168.10.4. (192.168.10.4 is network, 192.168.10.5-6 are usuable addresses, 192.168.7.0 is broadcast)
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