Cradlepoint CBR450 - Manual (Page 99)

CRADLEPOINT
CBR450| USER MANUAL Firmware ver. 3.3.0
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7.6.7 Global VPN Settings
These settings apply to all configured VPN tunnels. Changing the Global VPN Settings is rarely necessary; the default
values are almost always sufficient.

IKE / ISAKMP Port: Internet Key Exchange / Internet Security Association and Key Management Protocol port.
Default: 500. This is a standard VPN port that usually does not need to be changed.

IKE / ISAKMP NAT-T Port: Internet Key Exchange / Internet Security Association and Key Management Protocol
network address translation traversal port. Default: 4500. This is a standard VPN NAT-T port that usually does not
need to be changed.

NAT-T KeepAlive Interval: Default: 20 seconds. Range: 0-3600 seconds. 20 seconds will be sufficient in almost
all cases.

Tunnel Connect Retry: Default: 30 seconds. Range: 10-255 seconds. 30 seconds will be sufficient in almost all
cases.