Nhrp - Cradlepoint IBR600 User Manual

User Manual / IBR600/IBR650
For each client this shows: Name, IP address, MAC address, amount of data uploaded (MB), amount of data
downloaded (MB), and when traffic was last sent or received for that client ("Last Traffic").
The names that are shown are received during a DHCP exchange. If a client disconnects and reconnects with a
new IP address there will be an additional entry in this list.
Pressing Reset Statistics will restart all counters at 0.

NHRP

Next Hop Resolution Protocol is a protocol used to discover addresses of clients on Non-Broadcast Multiple
Access (NBMA) networks. It is used to create next-generation VPN technologies that allow shortcutting
between spokes. With NHRP, systems attached to an NBMA network dynamically learn the NBMA address of
the other systems that are part of that network, allowing these systems to directly communicate without
requiring an intermediate hop.
NOTE: NHRP Configuration requires a feature license not included with ECM Prime. Go to SYSTEM >
Administration > Feature Licenses to enable this feature.
The NHRP Supported Interfaces table
displays the following fields for each
configured NHRP interface:
• Name: Name of the GRE tunnel that
NHRP will use
• Protocol Address/Prefix: GRE
tunnel endpoint mapping that NHRP
associates with the NBMA server
• NBMA Address: NBMA server address the protocol address/prefix is associated with
• Flags:
• SD: Shortcut-Destination
• N: Non-Caching
• S: Shortcut
• R: Redirect
Click Add to create a new NHRP interface.
• Enabled: Enable or disable the interface.
• Name: Give the interface a unique name that
matches the mGRE (multipoint GRE) tunnel.
Select from configured GRE tunnels or input
manually.
• Peer Authentication: Embeds the secret
plaintext password to outgoing NHRP
packets. Incoming NHRP packets on this
interface are discarded unless this password
is present. Max length: eight characters.
• Holding Time: Specifies the holding time for
NHRP registration requests and resolution
replies.
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11/5/15
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