bird-bgp software package provides Internet Routing Daemon [transitional package], you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install bird-bgp
bird-bgp is installed in your system.
Make ensure the bird-bgp package were installed using the commands given below,
$ sudo dpkg-query -l | grep bird-bgp *
You will get with bird-bgp package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Network |
| Package | bird-bgp |
| Version | 1.6.2-1 |
| Description | Internet Routing Daemon [transitional package] |
| Sub Section | Net |