3com 812 Manual De Usuario

Setting Up a Virtual Private Network (VPN) Tunnel

6-9

For example, to change the SEND_PASSWORD settings of a tunnel named ZOOM
to VPN, enter the following command:

SET TUNNEL ZOOM SEND_PASSWORD VPN

You must disable the tunnel using the disable tunnel <tunnel_name>
command before you can change any parameters.

Creating a VPN Tunnel

Using Non-Default

Values

To change any of the default values for a VPN tunnel created using the
add tunnel command, enter the set tunnel command.

Encrypting a PPTP or

L2TP Tunnel

Encryption protocols can be used in conjunction with authentication protocols to
ensure that the VPN, private networks, and private data cannot be accessed or
intercepted by unauthorized parties. To set up encryption for any VPN tunnel, you
can use either the OCR 812 web configurator or the OCR 812 CLI.

To learn how to set up encryption using the CLI, see

Configuring

Authentication and Encryption

To learn how to set up encryption using the OCR 812 web configurator, see the
Online User’s Guide, the section called “Configuring Virtual Private Networks”.

INPUT_FILTER

<filter_name>

OUTPUT_FILTER

<filter_name>

PASSWORD

SEND_PASSWORD

The SEND_PASSWORD
must match the
authentication password
on the VPN server. You
must change the default
SEND_PASSWORD using
the SET TUNNEL
command.

MTU

1400

SEND_NAME

<name>

The SEND_NAME must
correspond with the
authentication name on
the VPN server.

NAT_OPTION

PAT

LOCAL_IP_ADDRESS

<ip_address>

255.255.255.255 is the
recommended setting for
LOCAL_IP_ADDRESS

REMOTE_IP_ADDRESS

<ip_address>

255.255.255.255 is the
recommended setting for
REMOTE_IP_ADDRESS

Table 6-2 812 Set Tunnel Parameters and Supported Values

Parameter

Supported Value

Remarks