Re-Dhcp Authentication Configuration Example - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide
# Enable portal authentication on interface ethernet1/0/0.
[3Com] interface ethernet 1/0/0
[3Com-Ethernet 1/0/0] ip address 162.21.1.1 255.255.0.0
[3Com-Ethernet 1/0/0] portal newp
[3Com-Ethernet 1/0/0] quit
# Configure a route to segment 162.31.0.0/16.
[3Com] ip route-static 162.31.0.0 16 162.21.0.0
2) On Router B, configure a default route to segment 192.168.0.0/16, specifying the
next hop as 162.21.0.0. The detailed configurations are not described here.

3.2.5 Re-DHCP Authentication Configuration Example

I. Network requirements
Configure portal authentication on the router, and set the portal operating mode to
re-DHCP authentication.
The name of the portal server is newp.
The router counts on the RADIUS server for authentication and accounting.
Before passing the portal authentication, the IP address used by the user is a
private address obtained from a DHCP server. After passing the portal
authentication, the user obtains a public address and can access the Internet.
II. Network diagram
PC
172.21.1.2/16
Gateway: 172.21.1.1
Figure 3-4 Network diagram for Re-DHCP authentication
III. Configuration procedure
Ethernet0/0/0
172.21.1.1/16 (primary)
18.21.1.1 (secondary)
3Com Corporation
Ethernet1/0/0
192.168.1.160/16
Radius authentication/accounting/DHCP server
192.168.1.100/16
3-9
Chapter 3 Portal Configuration
Portal server
192.168.1.200/16