You need to select the corresponding authentication method based
on the server’s authentication method. When you select “Auto”,
router will auto select the correct method based on servers.
Enable Tunnel
Authenticatio
n
Tick to enable tunnel authentication and enter the tunnel secret
which provided by L2TP server.
EnterL2TPremote Protected subnet’s address.
EnterL2TPremote Protected subnet’s mask.
Show L2TP
Client
Advanced
Tick to enable the L2TP client advanced setting.
Set the IP address of the L2TP client.
You can enter the IP which assigned by L2TP server. Null means L2TP
client will obtain an IP address automatically from L2TP server’s IP
pool.
Enter the remote peer’s private IP address or remote subnet’s
gateways address.
Address/Cont
rol
Compression
Used for PPP initialization. In general, you need to enable it as default.
Protocol Field
Compression
Used for PPP initialization. In general, you need to enable it as default.
One of the L2TP initialization strings. In general, you don’t need to
modify this value.
Maximum Receiving Unit. It is the identifier of the maximum size of
packet, which is possible to receive in a given environment.
Maximum Transmission Unit. It is the identifier of the maximum size of
packet, which is possible to transfer in a given environment.
Specify the interval between L2TP client and server.
To check the connectivity of a tunnel, the client and server regularly
send PPP Echo to each other. If the client or server receives no
response from the peer within a specified period of time, it retransmits
the PPP echo. If it receives no response from the peer after
transmitting the PPP echo for max retries times, it considers that the
L2TP tunnel is down and tries tore-establish a tunnel with the peer.
Link
Detection
Max Retries
Specify the max retries times for L2TP link detection.
You can enter some other PPP initialization strings in this field. Each
string can be separated by a space.