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Take your networking performance to new heights with a modern, cloud-native, AI-Native architecture. Only Juniper can help you unleash the full potential of Wi-Fi 7 with our AI-Native platform for innovation.
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Juniper’s AI data center solution is a quick way to deploy high performing AI training and inference networks that are the most flexible to design and easiest to manage with limited IT resources.
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Shaping Student Experiences: The NOW Way to Build Higher Education Networks

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In this IDC Spotlight report, discover how AI networking can automate and strengthen a healthcare ecosystem to defeat criminals and prevent loss. 
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The Future of In-Store Technologies

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Juniper ACX7020 Cloud Metro Access Router

Legacy networks simply cannot meet the demands of today’s rapidly evolving metro landscape. Unlock a new generation of highly scalable architectures and automated operations with the Juniper ACX7020. 
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Next-gen AI-Native EX4000 line of switches

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Juniper AI Data Center Deployment Services Optimize Your AI Model Runs

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Home Documentation Junos OS Junos CLI Reference CLI Reference U

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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unconditional-src-learn

date_range 20-Nov-23
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unconditional-src-learn;

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[edit interfaces interface-name unit logical-unit-number family inet]

Description

Enables the router to learn IP addresses from nonvalidated sources when proxy Address Resolution Protocol (ARP) is configured.

CAUTION:

By default, the router learns IP addresses from validated sources only. When this statement is configured and proxy ARP is enabled on an unnumbered interface, the router responds to ARP requests from any IP address, which might lead to exploitable information disclosure. An attacker can poison the ARP cache and create a fake forwarding table entry for an IP address, effectively creating a denial of service for that subscriber or interface. Therefore, exercise caution when configuring this statement.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 10.4R16.

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