Nortel 7 - Control Tunnel Types; Figure 27 Branch Office Control Tunnel

138 Chapter 7 Configuring control tunnels
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Figure 27 Branch office control tunnel
Control tunnel types
There are two types of control tunnels: a branch office control tunnel and a user
control tunnel. With both tunnel types, you can establish a secure IPsec tunnel to a
system that you want to manage. The traffic inside the tunnels is limited to the
Nortel VPN Router’s management IP address only, which is unique to control
tunnels. Figure 28 on page 139 shows a special branch office control tunnel from
a network operations center in Cleveland, and also a user control tunnel.
VPN Server 1
VPN Server 2
Control
Tunnels
el
el
FTP
Server
RADIUS
Server
Network Operations Center
SNMP
Trap Host
Web
Client
VPN Server 4
VPN Server 3
VPN Server 5
VPN Server 6
VPN Server