babeld command not found

In this troubleshooting guide we learn how to fix babeld command not found error message

Introduction

When you run more command in linux terminal / console, you get the following error message

babeld: command not found

or when using sudo you get the following error message

sudo: babeld: command not found

Solutions to babeld: command not found

How To Fix babeld: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu babeld is provided by babeld package.

babeld is:

Babel is a distance-vector routing protocol for IPv6 and IPv4 with fast convergence properties, described in RFC 6126. It was designed to be robust and efficient on both wireless mesh networks and classical wired networks. Babel has extremely modest memory and CPU requirements. Unlike most routing protocols, which route either IPv4 or IPv6 but not both at the same time, Babel is a hybrid IPv6 and IPv4 protocol: a single update packet can carry both IPv6 and IPv4 routes (this is similar to how multi-protocol BGP works). This makes Babel particularly efficient on dual (IPv6 and IPv4) networks. This implementation also includes a radio frequency-aware variant of Babel.

Babel has the following features:

  • it is a distance-vector protocol;
  • it is a proactive protocol, but with adaptative (reactive) features;
  • it senses link quality for computing route metrics using a variant of the ETX algorithm;
  • it uses a feasibility condition that guarantees the absence of loops (the feasibility condition is taken from EIGRP and is somewhat less strict than the one in AODV);
  • it uses sequence numbers to make old routes feasible again (like DSDV and AODV, but unlike EIGRP);
  • it speeds up convergence by reactively requesting a new sequence number (like AODV, and to a certain extent EIGRP, but unlike DSDV);
  • it allows redistributed external routes to be injected into the routing domain at multiple points (like EIGRP, but unlike DSDV and AODV).

To fix this problem, we can install more using the command below.

sudo apt-get -y install babeld

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install babeld.

sudo apt -y install babeld

Or if you have aptitude installed you can use the following command.

sudo aptitude install babeld

Summary

In this tutorial we learn how to fix babeld command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.