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Telindus 1031 Router
Chapter 7
User manual
129
7.5.2
How does L2TP work?
Suppose a packet coming from the LAN has a destination address for a network that is accessible
through a tunnel. The following happens:
7.5.3
Configuring L2TP
Use the
l2tpTunnels
attribute to set up and configure an L2TP tunnel. Refer to
.
Phase
Description
1
The packet goes through the routing decision process. If
the result of this decision is a route which uses the tunnel
interface, then the packet is encapsulated in PPP first,
then L2TP, UDP and finally IP.
2
Then the packet goes through the routing decision process again. This time using the
outer IP header.
3
The packet is routed over the Internet using the outer IP header.
4
The packet is received in the tunnel's end point, where it is then routed again using the
original IP header.
IP (from LAN)
PPP
L2TP
UDP
(outer) IP
Summary of Contents for 1031
Page 11: ...Telindus 1031 Router User manual 1 User manual ...
Page 12: ...Telindus 1031 Router User manual 2 ...
Page 80: ...Telindus 1031 Router Chapter 5 User manual Basic configuration 70 ...
Page 168: ...Telindus 1031 Router Chapter 8 User manual Configuring the bridge 158 ...
Page 179: ...Telindus 1031 Router Reference manual 169 Reference manual ...
Page 180: ...Telindus 1031 Router Reference manual 170 ...
Page 308: ...Telindus 1031 Router Chapter 11 Reference manual Status attributes 298 ...
Page 336: ...Telindus 1031 Router Chapter 12 Reference manual Performance attributes 326 ...
Page 348: ...Telindus 1031 Router Chapter 13 Reference manual Alarm attributes 338 ...
Page 362: ...Telindus 1031 Router Chapter 15 Reference manual Auto installing the Telindus 1031 Router 352 ...
Page 370: ...Telindus 1031 Router Chapter 16 Reference manual Downloading software 360 ...
Page 380: ...Telindus 1031 Router Chapter 17 Reference manual Technical specifications 370 ...
Page 381: ...Telindus 1031 Router Annex 371 Annex ...
Page 382: ...Telindus 1031 Router Annex 372 ...
Page 384: ...Telindus 1031 Router Annex A Annex common TCP and UDP numbers 374 ...
Page 386: ...Telindus 1031 Router Annex B Annex product information 376 ...