[SRX] CLNS communication over GRE on SRX is not supported

  [KB34438] Show Article Properties


Summary:

CLNS communication over GRE is not supported on SRX. Currently, SRX only supports IPV4 communication over GRE.

Symptoms:

When configuring IS-IS over GRE, and the CLNS communication uses GRE for the communication, packet drops are seen on SRX for the CLNS packet. 

Solution:

Connectionless Network Service (CLNS) is a Layer 3 protocol similar to IP version 4 (IPv4) for linking hosts (end systems) with routers (intermediate systems) in an Open Systems Interconnection (OSI) network.‚Äč You can configure IS-IS to exchange CLNS routes within a CLNS island. For more details, refer to the technical document, CLNS Configuration Overview

CLNS communication over GRE is not supported on SRX. Currently, SRX  only supports IPV4 communication over GRE.

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