408
192:168:1::2 1::2 18001 S-H Success 0H 46M 8S
The output shows that Spoke 1 has established a permanent hub-spoke tunnel to Hub 1 and Hub 2.
# Display IPv6 ADVPN tunnel information on Spoke 3 and Spoke 4. This example uses Spoke 4.
[Spoke3] display advpn ipv6 session
Interface : Tunnel1
Number of sessions: 1
Private address Public address Port Type State Holding time
192:168:2::1 1::3 18001 S-H Success 0H 46M 8S
The output shows that Spoke 3 has established a permanent hub-spoke tunnel to Hub 3.
IPv4 full-mesh NAT traversal ADVPN configuration example
Network requirements
As shown in Figure 152, all the VAM servers and VAM clients reside behind a NAT gateway. The
primary and secondary VAM servers manage and maintain VAM client information for all hubs and
spokes. The AAA server performs authentication and accounting for VAM clients. The two hubs back
up each other, and perform data forwarding and route exchange.
• Establish a permanent ADVPN tunnel between each spoke and each hub.
• Establish a temporary ADVPN tunnel dynamically between the two spokes in the same ADVPN
domain.
Figure 152 Network diagram
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