Using Cip & Ip Routing - Alcatel Speed Touch Pro User Manual

9 IP Routing & Classical IP
9.4 Using CIP & IP Routing
CIP Operation
Classical IP and STPro
Configuration and
operation example
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Similar to classical LAN networking, IP Routing and CIP adhere to
the "always on" concept. That is, no special actions (e.g. dialing)
must be undertaken prior to IP connectivity.
IP packets sourced by local PCs, arrive via the Ethernet segment in
the . The latter makes routing decisions based on the
destination IP address of the packet. If the packet ends up in the
CIP member, it will on its turn determine to which VC it has to
output the packet.
You can check IP connectivity from any PC on the local Ethernet
segment. Therefor, ping the IP address at the far end of the virtual
connection; e.g. for the example of subsection 9.3.7, this would
be 172.16.1.2, or thus
The IP router in the
port and the Classical IP entity sitting on top of the ADSL/ATM
port. In turn, the CIP entity determines which VC it has to output
the packet to, prior to ATM encapsulation.
The figure below provides an overview of the
end Classical IP operation:
Virtual Channels
VPI/VCI:8/80
VPI/VCI:8/81
VPI/VCI:8/82
VPI/VCI:8/83
Virtual Channel Resolving,
ATM encapsulation
Figure 50 STPro Classical IP operation.
ping 172.16.1.2
forwards packets between the Ethernet
IP Routing
CIP
Member
.
rear to front
Ethernet
IP Packet
adsl 0746/ 02
3EC 17059 AAAA TCZZA Ed. 02