3Com OfficeConnect 3C857, User Manual

Page: 58 / 120

58 C
HAPTER
5: G
ATEWAY
C
ONFIGURATION
Dynamic IP Address
Figure 43 Connection Parameters Screen - Dynamic IP
If this mode is selected, your IP Address, Subnet Mask, and DNS Address
will be obtained automatically from your ISP. They are not displayed on
this screen, but may be viewed on the Status screen (click on
Status and
Logs on the left hand menu bar).
To setup the Gateway for use with a dynamic IP address connection:
1 Select Dynamic IP Address (automatically allocated) in the IP Allocation
Mode field. ( Figure 43 )
2 Enter your Primary DNS Address and Secondary DNS address .
Your ISP may provide you with primary and secondary DNS addresses. If
they have been provided, enter the addresses in the appropriate text
boxes. If not, leave
0.0.0.0 in the boxes.
3 Enter the Host Name (optional).
Some ISPs require a host name. If your ISP has this requirement, enter the
host name in the
Host Name text box.
4 If you use ‘Cable’, your ISP may use your MAC address to authenticate
you. If this is the case, you will need to ‘Clone’ your MAC address. There
are three options:
■
Use the Gateway’s original Internet MAC address - This field is
selected by default and is automatically filled in with the MAC address
of the Gateway.