Next Hop Resolution Protocol (NHRP) Types

Last Updated
2009-02-17
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Registries included below

NHRP Packet Types

Registration Procedure(s)
Expert Review
Expert(s)
Jim Luciani
Reference
[RFC2332]
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 [RFC2332].
Available Formats

CSV
Type Name Reference
1 NHRP Resolution Request [RFC2332]
2 NHRP Resolution Reply [RFC2332]
3 NHRP Registration Request [RFC2332]
4 NHRP Registration Reply [RFC2332]
5 NHRP Purge Request [RFC2332]
6 NHRP Purge Reply [RFC2332]
7 NHRP Error Indication [RFC2332]
8-127 Unassigned
128-255 Reserved

NHRP Extension Types

Registration Procedure(s)
Expert Review
Expert(s)
Jim Luciani
Reference
[RFC2332]
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 [RFC2332]
1-2 Unassigned
3 Responder Address Extension [RFC2332]
4 NHRP Forward Transit NHS Record Ext. [RFC2332]
5 NHRP Reverse Transit NHS Record Ext. [RFC2332]
7 NHRP Authentication Extension [RFC2332]
8 NHRP Vendor-Private Extension [RFC2332]
9 Unassigned
10 NHRP Mobile NHC Authentication Ext. [RFC2520]