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Home Documentation Junos OS Junos CLI Reference CLI Reference A

Junos CLI Reference

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Junos CLI Reference
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{ "lLangCode": "en", "lName": "English", "lCountryCode": "us", "transcode": "en_US" }
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allow-embedded-icmp

date_range 20-Nov-23
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Syntax

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allow-embedded-icmp;

Hierarchy Level

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[edit security flow]

Description

Allow ICMP error packets to pass through the device even when there is no session match for the embedded packet. Once enabled, all packets encapsulated in ICMP pass through and no policy affects this behavior. This feature is useful when you have asymmetric routing in your network and you want to use traceroute and other ICMP applications on your device.

The default behavior is to inspect the IP packet which is embedded in the ICMP error packet. If the embedded packet is part of an existing session, the ICMP packet is allowed to pass through. If there is no match, it is dropped. Without the allow-embedded-icmp option configured, the default behavior applies.

Required Privilege Level

security—To view this in the configuration.

security-control—To add this to the configuration.

Release Information

Statement introduced in Junos OS Release 12.3X48-D10.

Related Documentation

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