Lancom Systems LCOS 3.50 Manuel D’Utilisation
LANCOM Reference Manual LCOS 3.50
Chapter 14: Virtual Private Networks—VPN
324
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Headquarters has a fixed, static address. When the connection is set up,
Branch office transmits its actual IP address to Headquarters. This is
accomplished by a special ICMP packet (alternatively UDP, port 87).
Branch office transmits its actual IP address to Headquarters. This is
accomplished by a special ICMP packet (alternatively UDP, port 87).
14.6.3
Static/dynamic (with LANCOM Dynamic VPN)
In this case (other than the example above), the peer with the static IP address
initiates the VPN connection.
initiates the VPN connection.
The VPN gateway Headquarters initiates a VPN connection to Branch
office. Headquarters has a static IP address, Branch office a dynamic one.
office. Headquarters has a static IP address, Branch office a dynamic one.
The entries for the ISDN connection are needed for the transmission
of the actual dynamic IP address solely. The Internet access wizard
configures the connection to the Internet.
of the actual dynamic IP address solely. The Internet access wizard
configures the connection to the Internet.
Entry
Headquarters
Branch_office
Type of local IP address
static
dynamic
Type of remote IP address
dynamic
static
Name of the local device
Headquarters
Branch_office
Name of the remote device
Branch_office
Headquarters
Password for the secure
transmission of the IP address
transmission of the IP address
confidential
confidential
Shared Secret for encryption
secret
secret
IP address of the remote device
–
193.10.10.1
IP-network address of the remote
network
network
10.10.2.0
10.10.1.0
Netmask of the remote network
255.255.255.0
255.255.255.0
Headquarters
Branch_office
LAN 10.10.1.x
LAN 10.10.2.x
VPN tunnel
Static IP address
Private IP
10.10.1.1
Public IP
193.10.10.1
ISDN no.
(030) 12345
ISDN identifier
03012345
Dynamic IP address
Private IP
10.10.2.1
ISDN no.
(069) 54321
ISDN identifier
06954321
ISDN
Internet