What is the difference between "all", "default" and a specific device in a sysctl parameter?

Solution Verified - Updated -

Issue

  • What are the differences in the specification of all, default or a specific device (eth0) in some sysctl parameters, e.g.:

    net.ipv4.conf.eth0.rp_filter 0

    vs

    net.ipv4.conf.all.rp_filter 0

  • Setting a sysctl parameter on a specific interface.

Environment

  • Red Hat Enterprise Linux(All versions)

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content