Secure Computing ADMINGUIDEREVA Manuál stáhnout pdf (Strana 34)

80-001113 SysLINK Administrator’s Guide Page 32

It is often desirable to partition larger networks into a series of smaller networks that are

separated by routers (also called “gateways”). This process is called “subnetting” and is

accomplished by extending the default netmask. Some examples of common netmasks can

be found in Table 2-2.

IP Address

IP Netmask

Network Number

Host Number

192.168.10.1

255.255.255.0

192.168.10.0

0.0.0.1

10.11.12.13

255.0.0.0

10.0.0.0

0.11.12.13

10.11.12.129

255.255.255.0

10.11.12.0

0.0.0.129

10.11.12.129

255.255.255.248

10.11.12.128

0.0.0.1

Table 2-2: IP Netmask Examples

If you are not using DHCP/BOOTP and your network uses subnets (or supernets), you can

override the default net mask by specifying it in this field. Once you click the "Save IP

Address/Netmask" button these parameters will be saved. They will take effect on the next

reboot (see the Reset/Reboot section).

Default Gateway

The default gateway may be specified either on this page or the IP Routing page.

Ethernet MTU

Specifies the maximum size of packets sent on the local area network – the Maximum

Transmit Unit or MTU.

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Secure Computing ADMINGUIDEREVA Manuál Strana 34