Ruby Tech GS-2124C manual Publication date June Revision A1

Models: GS-2124C

1 267
Download 267 pages 53.81 Kb
Page 43
Image 43

GS-2124C User Manual

IP address:

Users can configure the IP settings and fill in new values if users set the DHCP function “Disable”. Then, click <Apply> button to update.

When DHCP is disabled, Default: 192.168.1.1

If DHCP is enabled, this field is filled by DHCP server and will not allow user manually set it any more.

Subnet mask:

Subnet mask is made for the purpose to get more network address because any IP device in a network must own its IP address, composed of Network address and Host address, otherwise can’t communicate with other devices each other. But unfortunately, the network classes A, B, and C are all too large to fit for almost all networks, hence, subnet mask is introduced to solve this problem. Subnet mask uses some bits from host address and makes an IP address looked Network address, Subnet mask number and host address. It is shown in the following figure. This reduces the total IP number of a network able to support, by the amount of 2 power of the bit number of subnet number (2^(bit number of subnet number)).

32 bits

Network ID

Host ID

Network ID

Host ID

Subnet number

Subnet mask is used to set the subnet mask value, which should be the same value as that of the other devices resided in the same network it attaches.

For more information, please also see the Section 2-1-4 “IP Address Assignment” in this manual.

Default: 255.255.255.0

Default gateway:

Set an IP address for a gateway to handle those packets that do not meet the routing rules predefined in the device. If a packet does not meet the criteria for other pre-defined path, it must be forwarded to a default router on a default path. This means any packet with undefined IP address in the routing table will be sent to this device unconditionally.

Default: 192.168.1.254

Publication date: June, 2005

Revision A1

33

Page 43
Image 43
Ruby Tech GS-2124C manual Publication date June Revision A1