RHEL: why does a remote IP address only respond when an alias is configured?

Solution In Progress - Updated -

Issue

  • we are unable to ping destination IP with 2nd IP configured on interface, while the primary IP is ping fine with destination source.
  • Only after we add an alias on the same subnet can we ping the remote host.

Environment

  • Red Hat Enterprise Linux
  • IP routing

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In
Close

Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.