3Com 3C13636 Configuration Manual page 1283

3Com Router 3000 Ethernet Family
Configuration Guide
[Client2-Tunnel0] dvpn interface-type client
[Client2-Tunnel0] dvpn server testserver
[Client2-Tunnel0] dvpn vpn-id 1
[Client2-Tunnel0] quit
# Configure static routes.
[Client2] ip route-static 10.0.1.0
[Client2] ip route-static 10.0.2.0
4.3.2 Configuration Example for DVPN in Combination with GRE
I. Network requirements
As Figure 4-4 shows, the headquarters, Branch A and Branch B form a VPN, which
comprises a DVPN established between the headquarters and Branch A and a VPN
established between the headquarters and Branch B using GRE. Detailed
requirements are as follows:
Server can communicate with Client 1 and Client 2.
Authentication is performed between Server and Client1 by using a pre-shared
key.
Client 1 and Client 2 communicate with each other through Server.
II. Network diagram
Ethernet0/0/0: 201.1.1.2/24 Ethernet0/0/0: 201.1.1.2/24
Tunnel0:10.0.0.2/24 Tunnel0:10.0.0.2/24
Client1 Client1
Figure 4-4 Network diagram for DVPN in combination with GRE
III. Configuration procedure
1) Configure Server
Server Server Server
Tunnel0 : 10.0. 0.1/24 Tunnel0 : 10.0. 0.1/24 Tunnel0 : 10.0. 0.1/24
DVPN DVPN DVPN
Internet Internet
Ethernet0/0/1:10.0.2.1/24 Ethernet0/0/1:10.0.2.1/24
Branch A Branch A Branch A
3Com Corporation
255.255.255.0
255.255.255.0
Headquarters Headquarters
Tunnel1:10. 1. 0.1/24 Tunnel1:10. 1. 0.1/24 Tunnel1:10. 1. 0.1/24
Ethernet0/0 /0: 201. 1. 1. 1 Ethernet0/0 /0: 201. 1. 1. 1 Ethernet0/0 /0: 201. 1. 1. 1
GRE GRE GRE
Ethernet0/0/0: 201.1.1.3 Ethernet0/0/0: 201.1.1.3 Ethernet0/0/0: 201.1.1.3
Tunnel1: 1 0.1.0.2/24 Tunnel1: 1 0.1.0.2/24 Tunnel1: 1 0.1.0.2/24
Client2 Client2 Client2
Ethernet0/0/1:10.1.2.1/24 Ethernet0/0/1:10.1.2.1/24 Ethernet0/0/1:10.1.2.1/24
4-29
Chapter 4 DVPN
10.0.0.1
10.0.0.2
Branch B Branch B Branch B