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170 AT-WR4500 Series - IEEE 802.11abgh Outdoor Wireless Routers
RouterOS v3 Configuration and User Guide
Finally, the proxy APR must be enabled on the 'Office' interface:
[admin@RemoteOffice] interface ethernet> set Office arp=proxy-arp
[admin@RemoteOffice] interface ethernet> print
Flags: X - disabled, R - running
# NAME MTU MAC-ADDRESS ARP
0 R ToInternet 1500 00:30:4F:0B:7B:C1 enabled
1 R Office 1500 00:30:4F:06:62:12 proxy-arp
[admin@RemoteOffice] interface ethernet>
L2TP Setup for Windows
Microsoft provides L2TP client support for Windows XP, 2000, NT4, ME and 98. Windows 2000 and XP
include support in the Windows setup or automatically install L2TP. For 98, NT and ME, installation
requires a download from Microsoft (L2TP/IPsec VPN Client).
For more information, see:
Microsoft L2TP/IPsec VPN Client Microsoft L2TP/IPsec VPN Client
On Windows 2000, L2TP setup without IPsec requires editing registry:
Disabling IPsec for the Windows 2000 Client
Disabling IPSEC Policy Used with L2TP
8.5.7 Troubleshooting
Description
I use firewall and I cannot establish L2TP connection
Make sure UDP connections can pass through both directions between your sites.
My Windows L2TP/IPsec VPN Client fails to connect to L2TP server with "Error 789" or "Error
781"
The error messages 789 and 781 occur when IPsec is not configured properly on both ends. See the
respective documentation on how to configure IPsec in the Microsoft L2TP/IPsec VPN Client and in the
RouterOS. If you do not want to use IPsec, it can be easily switched off on the client side.
If you are using Windows 2000, you need to edit system registry using regedt32.exe or regedit.exe.
Add the following registry value to
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Rasman\Parameters:
Value Name: ProhibitIpSec
Data Type: REG_DWORD
Value: 1
You must restart the Windows 2000 for the changes to take effect
8.6 PPPoE
Document revisi on: 1.6 (Mon Jul 17 14:11:18 GMT 2006)
Applies to: V2.9
8.6.1 General Information
Summary
The PPPoE (Point to Point Protocol over Ethernet) protocol provides extensive user management,
network management and accounting benefits to ISPs and network administrators. Currently PPPoE is
used mainly by ISPs to control client connections for xDSL and cable modems as well as plain Ethernet
networks. PPPoE is an extension of the standard Point to Point Protocol (PPP). The difference between
them is expressed in transport method: PPPoE employs Ethernet instead of modem connection.