Next Hop Resolution Protocol (NHRP) Types

Last Updated
2009-02-17
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NHRP Packet Types

Registration Procedure(s)
Expert Review
Expert(s)
Jim Luciani
Reference
[RFC 2332]
Note
When ar$op.version == 1, the NHRP packet type is listed below.

Use of NHRP packet Types in the range 128 to 255 are reserved for
research or use in other protocol development and will be administered
by IANA as described in Section 9 of [RFC 2332].
Available Formats

CSV
Type Name Reference
1 NHRP Resolution Request [RFC 2332]
2 NHRP Resolution Reply [RFC 2332]
3 NHRP Registration Request [RFC 2332]
4 NHRP Registration Reply [RFC 2332]
5 NHRP Purge Request [RFC 2332]
6 NHRP Purge Reply [RFC 2332]
7 NHRP Error Indication [RFC 2332]
8-127 Unassigned
128-255 Reserved

NHRP Extension Types

Registration Procedure(s)
Expert Review
Expert(s)
Jim Luciani
Reference
[RFC 2332]
Note
The NHRP extension Type space is subdivided to encourage use outside
the IETF.

     0x0000 - 0x0FFF         Reserved for NHRP.
     0x1000 - 0x11FF         Allocated to the ATM Forum.
     0x1200 - 0x37FF         Reserved for the IETF.
     0x3800 - 0x3FFF         Experimental use.

IANA will administer the ranges reserved for the IETF as described in
Section 9. Values in the 'Experimental use' range have only local
significance.
Available Formats

CSV
Type Name Reference
0 The End of Extensions [RFC 2332]
1-2 Unassigned
3 Responder Address Extension [RFC 2332]
4 NHRP Forward Transit NHS Record Ext. [RFC 2332]
5 NHRP Reverse Transit NHS Record Ext. [RFC 2332]
7 NHRP Authentication Extension [RFC 2332]
8 NHRP Vendor-Private Extension [RFC 2332]
9 Unassigned
10 NHRP Mobile NHC Authentication Ext. [RFC 2520]