Internet Telephony PBX System
IPX-330/IPX-2100
99
Item
Explanation
IPSec Remote
Network
Specify the IPSec VPN client LAN network address.
1. If the IPPBX is behind NAT, port 500 and 4500 need to be opened on the
router/firewall.
2. If the IPPBX connects to Internet via PPPoE, then IPSec Local IP needs to be the
IP address assigned by PPPoE.
3. IPSec VPN server can connect 3 IPSec clients.
4.3.4.2 IPSec VPN server (Transport mode)
IPSec Transport mode is used for end-to-end communications, NAT traversal is not supported
with the transport mode. So if two IP PBX's connected via IPSec transport mode, IPSec only
encrypts the communication service ports, not like Tunnel mode which encrypts the whole LAN
subnet.
Check the IPSec radio button.
Item
Explanation
Enable
Tick the checkbox to enable IPSec VPN server.
Type
Select Transport mode.
IPSec Local IP
IPPBX WAN IP.(Same as configuring Tunnel mode)
IPSec Password
Define a password for authentication of the IPSec client.