dnroute: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/sbin/dnroute - from package: dnet-progs

You may install the required package with command apt-get install {package}

Error in other languages:
dnroute: bevel nie gevind nie
dnroute: comandă negăsită
dnroute: comando não encontrado
dnroute: commande introuvable
dnroute: command not found
dnroute: käsku ei ole
dnroute: không tìm thấy lệnh
dnroute: komanda nerasta
dnroute: Kommando nicht gefunden.
dnroute: kommandot finns inte
dnroute: komut yok
dnroute: nie znaleziono polecenia
dnroute: níor aimsíodh an t-ordú
dnroute: no se encontró la orden
dnroute: no s'ha trobat l'ordre
dnroute: opdracht niet gevonden
dnroute: parancs nem található
dnroute: perintah tidak ditemukan
dnroute: príkaz nenájdený
dnroute: příkaz nenalezen
dnroute: команда не найдена
dnroute: командата не е открита
dnroute: 命令找不到
dnroute: コマンドが見つかりません