L2TP Pseudowire Manual
L2TP Pseudowire Router App
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Information in this manual is subject to change without notice, and it does not represent a commitment on the part of Advantech.
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Used symbols
Danger – Information regarding user safety or potential damage to the router.
Attention – Problems that can arise in specific situations.
Information – Useful tips or information of special interest.
Example – Example of function, command or script.
Changelog
1.1L2TP Pseudowire Changelog
v1.0.0 (2021-12-03)
- First release
v1.0.0 (2016-01-14)
- First release
v1.0.1 (2016-04-01)
- Added IP encapsulation
v1.0.2 (2016-04-27)
- Added l2spec_type and cookie values
v1.0.3 (2017-02-10)
- Used l2tp modules built-in kernel
v1.0.4 (2017-07-27)
- Fixed interface start and stop
v1.0.5 (2018-09-27)
- Added expected ranges of values to JavaSript error messages
v1.1.0 (2020-10-01)
- Updated CSS and HTML code to match firmware 6.2.0+
v1.1.1 (2021-08-23)
- Removed bridge settings on physical interfaces – it’s handled by FW’s init script
Basic Information
2.1L2TP Pseudowire
In networking, a pseudowire (PW) refers to a mechanism that allows the encapsulation and forwarding of one type of network traffic over another type of network. L2TP pseudowire specifically refers to the use of L2TP (Layer 2 Tunneling Protocol) to establish a virtual connection between two endpoints over an IP or MPLS (Multiprotocol Label Switching) network, emulating the behavior of a point-to-point or multipoint Layer 2 circuit.
L2TP pseudowire is often used in service provider networks to provide Layer 2 connectivity between geographically dispersed customer sites. It enables the transport of Ethernet, Frame Relay, or ATM (Asynchronous Transfer Mode) frames over an IP or MPLS network. The use of L2TP pseudowires allows service providers to offer Layer 2 VPN services to their customers without the need for dedicated physical circuits between customer sites.
In summary, L2TP pseudowire is a technique that utilizes L2TP to create virtual Layer 2 connections over IP or MPLS networks, providing a flexible and cost-effective way to extend Layer 2 networks across different locations.
Router App Description
3.1Web Interface
After Router App installation, the module’s GUI can be invoked by clicking the router app name on the Router Apps page of router’s web interface.
Left part of this GUI contains menu with Status menu section, Configuration menu section and Customization menu section. Customization menu section contains only the Return item, which switches back from the module’s web page to the router’s web configuration pages. The main menu of router app GUI is shown on Figure below.
3.2L2TP
Configuration menu section contains L2TP item where all the setting of this router app takes place.
| Item | Description |
| Enable L2TP Pseudowire | Enables L2TP Pseudowire functionality. |
| Local IP Address | IP Address of local device. |
| Remote IP Address | IP Address of remote device. |
| Encapsulation | • udp – this option enable UDP Source port and UDP Destination port • ip – this option disable UDP Source port and UDP Destination port |
| Tunnel ID | Numeral ID of the local tunnel |
| Peer Tunnel ID | Numeral ID of peer (remote) tunnel |
| UDP Source Port | Local UDP port |
| UDP Destination Port | Remote UDP port |
| Session ID | Local Session ID |
| Peer Session ID | Remote Session ID |
| Cookie | Local cookie value, 8 or 16 characters long, (Only characters 0-9, A-F, not case sensitive) |
| Peer Cookie | Remote cookie value |
| L2 Specific Header | • default • none |
| Local Interface IP Address | IP Address of local interface |
| Remote Interface IP Address | IP Address of remote interface |
| Bridged | Select if you want connection bridged or not |
Table 1: L2TP Pseudowire Config Items
3.3System log
System log section contains log messages.
Example
You have 2 devices between which you want to create L2TP pseudowire. Each device have to have this router app installed and Config filled to reflect settings of other device.
After that, the L2TP tunnel is created, which can be confirmed by pinging other device
You can obtain product-related documents on Engineering Portal at icr.advantech.cz address.
To get your router’s Quick Start Guide, User Manual, Configuration Manual, or Firmware go to the Router Models page, find the required model, and switch to the Manuals or Firmware tab, respectively.
The Router Apps installation packages and manuals are available on the Router Apps page.
For the Development Documents, go to the DevZone page.
Advantech Czech s.r.o., Sokolska 71, 562 04 Usti nad Orlici, Czech Republic
Document No. APP-0122-EN, revision from 31st October, 2023.
Documents / Resources
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ADVANTECH L2TP Pseudowire Router App [pdf] User Guide L2TP Pseudowire Router App, L2TP, Pseudowire Router App, Router App, App, App L2TP |
