Aastra OpenCom X320 User Guide - Page 89

Configurator, NET Configuration: Branch, IPSEC, The OpenCom X320 in a LAN-to-LAN link

Page 89 highlights

Configuration Examples Branch Link In order for this to work, the two LANs must be configured for different IP address ranges (subnetworks). For at least one of the OpenCom X320 systems, change the prescribed address range for the LAN. OpenCom (IP=192.168.99.254, Net=192.168.99.0) Net S0 OpenCom (IP=192.168.11.254, Net=192.168.11.0) S0 Net PC 1 PC 2 PC 1 PC 2 Net Hub Net Net Hub Net The OpenCom X320 in a LAN-to-LAN link In the Configurator, NET Configuration: Branch menu you can configure the dial-in settings. ■ PPTP: The Point-to-Point Tunneling Protocol provides a VPN setup which is easy to configure. You provide on both sides a password for the mutual authentication and encryption. ■ IPSEC: For higher security demands, you should use this protocol to secure the VPN connection. You should transfer the keys to be entered on the configuration page via a secured channel (e.g. as disk file or via postal service). ■ ISDN: If an IP data transfer is required to the other LAN, the OpenCom X320 initiates a dial-in via ISDN. Note that such a connection is only set up when specific requests are made. These can be for FTP file transfers, e-mails or downloading Web pages. Name resolution via broadcasts is not possible. If you wish to use the LAN-to-LAN link to access files and printers in the Windows network, you need an IP-enabled server that administers the name resolution for the Windows network. As the IP address range, you can select one of the 256 class C subnetworks designed for local LANs. Select a class C sub-network in the range from 192.168.0.0 to 192.168.255.0. 87

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Configuration Examples
Branch Link
87
In order for this to work, the two LANs must be configured for different IP address
ranges (subnetworks). For at least one of the OpenCom X320 systems, change the
prescribed address range for the LAN.
The OpenCom X320 in a LAN-to-LAN link
In the
Configurator
,
NET Configuration: Branch
menu you can configure the
dial-in settings.
PPTP
: The Point-to-Point Tunneling Protocol provides a VPN setup which is
easy to configure. You provide on both sides a password for the mutual
authentication and encryption.
IPSEC
: For higher security demands, you should use this protocol to secure the
VPN connection. You should transfer the keys to be entered on the configu-
ration page via a secured channel (e.g. as disk file or via postal service).
ISDN
: If an IP data transfer is required to the other LAN, the OpenCom X320 ini-
tiates a dial-in via ISDN.
Note that such a connection is only set up when specific requests are made. These
can be for FTP file transfers, e-mails or downloading Web pages. Name resolution
via broadcasts is not possible. If you wish to use the LAN-to-LAN link to access files
and printers in the Windows network, you need an IP-enabled server that admin-
isters the name resolution for the Windows network.
As the IP address range, you can select one of the 256 class C subnetworks
designed for local LANs. Select a class C sub-network in the range from 192.168.0.0
to 192.168.255.0.
OpenCom
(IP=192.168.99.254,
Net=192.168.99.0)
S
0
Net
PC 2
Net
PC 1
Net
Hub
OpenCom
(IP=192.168.11.254,
Net=192.168.11.0)
S
0
Net
PC 2
Net
PC 1
Net
Hub