Cisco RV082 - Small Business VPN Router Manual de usuario descargar pdf (Pagina 16)

Supporting Multiple Users

Once your VPN expands to multiple users you must ensure

that IP addresses do not conflict by assigning each user their

own IP address.

Preventing IP Address Conflicts

How IP Addresses are Assigned to VPN Clients

The Local Address in VPN Tracker is the IP address that the Mac will be using

in the remote network when connected through VPN.

‣

If the Local Address field contains a fixed address this address is used. The

address must be unique among all users of the VPN connection

‣

If the Local Address field is left empty, the Mac’s actual local IP address (as

shown in System Preferences > Network) is used.

With multiple users, it’s easily possible that two users end up with the same

local IP address on their respective Macs (e.g. the private IP address

192.168.1.2). You will therefore have to use a fixed address when multiple

users connect to the VPN

Step 1 – Choose the Local Addresses

Choose the local addresses for your VPN clients so that

‣

the local addresses are not part of the VPN’s remote network (in most cases

the VPN gateway‘s LAN)

‣

each client has its own, unique IP address

Example: The VPN gateway ‘s LAN in our example is the network

192.168.13.0/24 (= 192.168.13.0/255.255.255.0). For the local addresses, choose an

arbitrary private network that is not part of this network, such as 10.1.2.0/24.

For each user, pick a different IP address from that network to be used as the

Local Address in VPN Tracker:

User

IP Address

Alice

10.1.2.1

Bob

10.1.2.2

Charlie

10.1.2.3

…

10.1.2...

Please refer to your VPN gateway’s documentation for the maximum number

of VPN users that can connect to the device.

The IP addresses may not be part of the remote network

since your VPN gateway cannot act as an ARP proxy

Step 2 – Configure the Local Address in VPN Tracker

‣

Local Address: Enter the IP address that you have chosen for this user (here:

10.1.2.1 for the user Alice)

If your VPN gateway is not the default gateway (router) of its

network, you will have to ensure that traffic for the chosen IP

addresses is routed back to the VPN gateway instead of to the

usual default gateway (e.g. by adding a route on the default

gateway to the VPN gateway for these IPs).

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