Tsunami
®
800 & 8000 Series - Software Management Guide 74
6. After configuring the required parameters, click OK and then COMMIT. Reboot the device, if you have changed the
PPPoE Status configuration.
5.2.6 IP over IP Tunneling
: Applicable only in Routing Mode.
Proxim’s point-to-multipoint and point-to-point devices support IP Tunneling, which serves as a communication channel
between two disjoint IP networks that do not have a native routing path to communicate with each other.
To enable communication between two disjoint networks using IP Tunneling, the following steps are involved:
1. The tunnel entry point receives the IP packet (Sender Source IP + Recipient IP) sent by the original sender.
2. The tunnel entry point encapsulates the IP packet (Sender Source IP + Recipient IP) with the IP addresses of the tunnel
endpoints. The tunneled packet (Sender Source IP + Recipient IP + Tunnel Entry Point IP + Tunnel Exit Point IP) is then
forwarded to the tunnel exit point.
3. On receiving the tunneled packet, the tunnel exit point removes the tunnel IP addresses and forwards the packet to
the recipient. The inner IP header Source Address and Destination Address identify the original sender and recipient of
the packet, respectively. The outer IP header Source Address and Destination Address identify the endpoints of the
tunnel.
MPPE Key Length
: This parameter is applicable only when Authentication Protocol is
configured as “MSCHAP v2” and MPPE Status is configured as
“Mandatory”.
MPPE supports 40-bit, 56-bit and 128-bit encryption key length. To configure the
desired key length, select a key length from the MPPE Key Length drop-down box.
Link Status Indicates the status of the PPPoE link between the PPPoE client and server.
The link can be in any of the following three stages:
·
Disconnected: No connection is established between PPPoE client and server.
·
Connecting: A connection attempt is in progress between PPPoE client and
server.
·
Connected: Connection is established between PPPoE client and server.
The Link Status can be viewed in
i B k
.
IP Packet
Sender Source IP Recipient IP
Tunneled IP Packet
(Inner IP Header) (Outer IP Header)
Sender Source IP Recipient IP Tunnel Entry Point IP Tunnel Exit Point IP
Parameter Description
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