Specifications

WAN/LAN Management Nur für den internen Gebrauch
A31003-H3580-M103-2-76A9, 01-2009
C-20 HiPath 3000/5000 V8 - HG 1500 V8, Administrator Documentation
hg-c.fm
IP Addressing: Subnets
Example:
A LAN with two Ethernet networks is to be connected to the Internet via ISDN access. All sta-
tions in the local Ethernet are to have Internet access and also be directly accessible from the
Internet. Based on the corresponding structures of a Class C address, a complete Class C net-
work would normally have to be provided for each of the two Ethernet networks and for the
ISDN network. However, as the maximum number of stations in a Thin Ethernet segment is lim-
ited to thirty, 223 host addresses per network would be lost here alone.
This is where sub-netting is of particular significance: With a corresponding netmask, just one
Class C network is required to achieve a complete LAN connection, without the loss of host ad-
dresses.
For this purpose, an Internet Service Provider provides a Class C network with the following
basic data:
Provider IP address: 192.93.98.222
Gateway IP address: 192.93.98.222
Networks IP address: 192.93.98.0
Netmask: 255.255.255.0