D-Link DFL-260E User Manual for DFL-260E - Page 422
PPTP/L2TP, Inner IP Address, Tunnel Protocol, Outer Interface Filter, Outer server IP, Microsoft
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9.2.7. PPTP Roaming Clients Chapter 9. VPN 2. Define a PPTP/L2TP object (let's call it pptp_tunnel) with the following parameters: • Set Inner IP Address to ip_net. • Set Tunnel Protocol to PPTP. • Set Outer Interface Filter to ext. • Set Outer server IP to ip_ext. • For Microsoft Point-to-Point Encryption it is recommended to disable all options except 128 bit encryption. • Set IP Pool to pptp_pool. • Enable Proxy ARP on the int interface. • As in L2TP, enable the insertion of new routes automatically into the main routing table. 3. Define a User Authentication Rule, this is almost identical to L2TP: Agent PPP Auth Source Local Src Network all-nets Interface pptp_tunnel Client Source IP all-nets (0.0.0.0/0) 4. Now set up the IP rules in the IP rule set: Action Allow NAT Src Interface pptp_tunnel pptp_tunnel Src Network pptp_pool pptp_pool Dest Interface any ext Dest Network int_net all-nets Service all_services all_services As described for L2TP, the NAT rule lets the clients access the public Internet via the NetDefend Firewall. 5. Set up the client. For Windows XP, the procedure is exactly as described for L2TP above but without entering the pre-shared key. 422