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OxyGEN
mini
Office
Administrator’s Guide
IPv6 Tunnel
This menu lets you configure the operation of several IPv6 tunnels for OxyGEN miniOffice. Available
choices for tunneling mechanisms are
Dual Stack Lite
,
TunnelBroker.net
,
6to4
and
Sixxs.net
.
Figure 11.3: IPv6 Tunnels
In order to configure a tunneling mechanism you need to perform the following steps:
1. Select
Enabled
in the
Status
radio button.
2. Select the desired tunneling method, i.e.
choose
Dual Stack Lite
,
TunnelBroker.net
,
6to4
and
Sixxs.net
from the provided drop-down list.
3. Fill-in the necessary fields in order to configure the selected tunnel.
4. Click
Apply
.
More particularly, detailed instructions for each tunnel are provided below:
1.
Dual Stack Lite
: In
Remote Server
field, you may choose
Fixed
mode, where the remote AFTR
server’s IPv6 address must be filled in the field
Remote Address
.
If, on the other hand, no
preconfigured address for the AFTR is desirable, then select
Auto
and leave
Remote Address
box
empty. This will enable DHCPv6 AFTR option and obtain the IP from the DHCPv6 server. Optionally,
you can assign the local tunnel interface an IPv4 address in the
Local tunnel
field and also enable
NAT in the respective check box. Finally, the Interface Group whose packets will be forwarded to
the tunnel interface may be selected in
Service
drop-down list.
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Administrator’s Guide
2.
Tunnelbroker.net
: You must first fill in the
Tunnel ID
, then the remote server’s IPv6 address into
Remote Address
, the credentials for the connection in the fields
User ID
and
Password
and,
optionally, an address for the tunnel interface
Local Tunnel
.
3.
6to4
:
Select the Interface Group for which the tunnel will be enabled through the
Service
drop-down list.
4.
Sixxs.net
: Configuration of Sixxs tunnel is done following the same steps as in Tunnelbroker tunneling
mechanism described above.
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OxyGEN
mini
Office
Administrator’s Guide
SSL VPN
This sub-menu lets you configure your OxyGEN miniOffice to act either as a server or as a client for a
Secure Sockets Layer (SSL) Virtual Private Network (VPN) tunnel. An SSL VPN is a form of VPN that uses
the SSL protocol for ensuring the security of data transmitted over the Internet. In the OxyGEN miniOffice,
this functionality is based on the widely used opensource OpenVPN project (
http://openvpn.net/
) and
supports both client and server modes of operation.
Figure 11.4: SSL VPN - Client Mode
Client Mode
To configure your device to act as an SSL VPN client :
1. Select Enabled as SSL VPN
Status
.
2. Select Client as the
Operation mode
from the drop down list.
3. Specify the hostname or IP address of the SSL server in the
Host/IP
field.
4. Select between Routed (Layer-3 / IP) or Bridged (Layer-2 / Ethernet)
Type
of VPN tunnel. The
former means that the VPN tunnel is a point-to-point IP connection, with IP addresses from a
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Administrator’s Guide
subnet different than the LAN. Bridged, on the other hand, means that the VPN connection will
operate like an Ethernet bridge between the LANs behind both the server and the client. For
more detailed information about the advantages and disadvantages of each type, please refer
to
Appendix E
.
5. When using Routed type, select if
NAT
(Network Address Translation) is going to be enabled for
LAN devices over the configured SSL VPN tunnel. In other words, if the multiple devices in the
client’s LAN are going to connect to the SSL VPN server using the IP address used by the client for
the VPN tunnel.
6. When using Bridged type, select which LAN
Service
(Interface Group) is going to be bridged over
the configured SSL VPN tunnel.
7. Click
Apply
.
In order to finish with the secure connection to the SSL VPN server, you will also need to install the
corresponding
Certificates
. These certificates must be provided to you by the administrator of the SSL
VPN server and can be uploaded by selecting the appropriate file using the
Browse
key and finally by
clicking the
Upload
key. The required certificate files and their names are:
connect.ovpn
: the client configuration file
ca.crt
: the certificate authority (CA) certificate
client.crt
: the client certificate
client.key
: the client key
It is also possible to install all files in one step, by gathering them in a zip archive.
Server Mode
If, on the other hand, you wish to configure your device to act as an SSL VPN server :
1. Select Enabled as SSL VPN
Status
.
2. Select Server as the
Operation mode
from the drop down list.
3. As in Client mode, select between Routed (Layer-3 / IP) or Bridged (Layer-2 / Ethernet)
Type
of
VPN tunnel. Please note that you must make the same sellection for both the server and the client.
4. When using Routed type, specify the
Network
and
Netmask
values for the subnet used as an IP
address pool for the connected clients.
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Figure 11.5: SSL VPN - Server Mode
5. When using Bridged type, select which LAN
Service
(Interface Group) is going to be bridged over
the configured SSL VPN tunnel. The DHCP server settings of this Service are going to be used for
the assignment of IP addresses to any DHCP requests from the SSL VPN client.
6. Click
Apply
.
The last step required for the operation of the SSL VPN server, is the definition of remote users and
the generation of the corresponding certificates. To this end, click the
Manage
key next to the
SSL VPN
users
label. The following screen appears:
In order to add a new remote user, enter the username under the
Add New User
heading and click
the
Save
key. The new user is added and a message window opens prompting you to save a zip file. This
zip file contains the configuration files and certificates corresponding to the added user. Save the file
and give it to the new remote user. It will be needed in order to connect to the SSL VPN server running
on your OxyGEN miniOffice.
If, on the other hand, you wish to prohibit further access to configured remote users, Revoke them
by clicking on the corresponding icon
of
Action
column in the list of the configured users.
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