18.5. Isolated Mode

download PDF
When using Isolated mode, guests connected to the virtual switch can communicate with each other, and with the host physical machine, but their traffic will not pass outside of the host physical machine, nor can they receive traffic from outside the host physical machine. Using dnsmasq in this mode is required for basic functionality such as DHCP. However, even if this network is isolated from any physical network, DNS names are still resolved. Therefore a situation can arise when DNS names resolve but ICMP echo request (ping) commands fail.
Virtual network switch in isolated mode

Figure 18.6. Virtual network switch in isolated mode

Red Hat logoGithubRedditYoutubeTwitter


Try, buy, & sell


About Red Hat Documentation

We help Red Hat users innovate and achieve their goals with our products and services with content they can trust.

Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. For more details, see the Red Hat Blog.

About Red Hat

We deliver hardened solutions that make it easier for enterprises to work across platforms and environments, from the core datacenter to the network edge.

© 2024 Red Hat, Inc.