Chapter 15 DMVPN
Dynamic Multipoint VPN
15-6
Cisco Router and Security Device Manager 2.5 User’s Guide
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Tunnel Key
Enter the key to use for this tunnel. This key should be the same for all mGRE
tunnels in the network.
Cisco SDM Default: 100000
Bandwidth
Enter the intended bandwidth, in kilobytes per second (kbps). Default bandwidth
values are set during startup; the bandwidth values can be displayed using the
show interfaces EXEC command. 1000 is a typical bandwidth setting in DMVPN
configurations.
Cisco SDM Default: 1000
MTU
Enter the largest amount of data, in bytes, that should be allowed in a packet
travelling through the tunnel.
Cisco SDM Default: 1400
Tunnel Throughput Delay
Set a delay value for an interface, in tens of microseconds.
Cisco SDM Default: 1000
Primary Hub
If the router you are configuring is the backup hub in the DMVPN network, you
need to identify the primary hub by providing its public and private IP addresses.
Public IP Address
Enter the IP address of the interface on the primary hub that is used for this tunnel.
This should be a static IP address. Obtain this information from the hub
administrator.