# IS-IS Labs: Configure IS-IS Routing for IPv4

DevFeed: [IS-IS Labs: Configure IS-IS Routing for IPv4](<https://devfeed.tech/articles/is-is-labs-configure-is-is-routing-for-ipv4-11071.md>)

Original publisher: [Read original article](<https://blog.ipspace.net/2024/09/isis-labs-basic/>)

Published: 2024-09-30T06:21:00Z

Content type: tutorial

Language: en

Sources: [ipSpace.net blog](<https://devfeed.tech/sources/ipspace-net-blog.md>)

Topics: [IS-IS](<https://devfeed.tech/topics/is-is.md>), [networking](<https://devfeed.tech/topics/networking.md>), [Routing (disambiguation)](<https://devfeed.tech/topics/routing.md>), [configuration](<https://devfeed.tech/topics/configuration.md>)

Tags: [configuration](<https://devfeed.tech/tags/configuration.md>), [ipv4](<https://devfeed.tech/tags/ipv4.md>), [is-is](<https://devfeed.tech/tags/is-is.md>), [netlab](<https://devfeed.tech/tags/netlab.md>), [routing](<https://devfeed.tech/tags/routing.md>)

## AI overview

The first exercise in an IS-IS labs series teaches configuration of IS-IS routing for IPv4. It also covers generic OSI addresses (NSAPs), router addresses (NETs), and vendor default settings that may require adjustment.

## Source excerpt

In the first exercise in the IS-IS labs series, you'll configure IS-IS routing for IPv4. The basic configuration is trivial, but you'll also have to tweak the defaults that most vendors got wrong (we'll discuss why those defaults are wrong in the next lab exercises). I also tried to make the IS-IS labs more than just lab exercises. Each exercise includes a bit of background information or IS-IS theory; this one describes generic OSI addresses (NSAPs) and router addresses (NETs).