Introduction To Ip Binding - UTStarcom iSpirit 3026 Manual

10.1 Introduction to IP Binding

IP Binding ensures user's safety. User is connected to Internet through switch. If some port of
the switch is bound with special IP Add. that is he valid IP Add. Switch allows theses users with
valid IP Add. to connect to the Internet through this port, but not allow invalid users with IP Add to
be connected to the Internet, so which has ensured users' safe connection to the Internet.
If some port of the switch is bound with IP Add. the switch will always check data flow through
this port. The data fow can be forwarded if resource IP Add of data flow is bound with legal IP
Add, otherwise it will be thrown away, which has protected that illegal users to connect to the
Internet.
Figure 10-1 is an example for IP binding, port 1 of iSpirit 3026 switch is bound with IP Add. of
192.168.0.100. under this port there are two users want to be connected to the Internet, IP Add.
of user 1 is 192.168.0.100, and IP Add of user 2 is 192.168.0.101. only user 1 can be connected
to the Internet throught the port of switch instead of user 2. Data flow P1 given out by user 1 can
be forwarded by port 1 of switch, but data flow p2 given out by user 2 will be thrown away
through Port 1
Figure 10-1.Connect to Internet from binding ports
IP binding only control the safety of switch port. Different ports of the switch can be bound with
the same IP Add. If Port A is bound with one IP Add. instead of Port B, the user with this IP Add