To install all versions of packettracer except 7.2.2, follow this guidelines:

1. Download the snapshot from AUR.

2. Tar -zxf the packettracer.tar.gz snapshot (it creates the dir packettracer/ with the PKGBUILD on it).

3. Download the latest packettracer tarball from your Netacad account and copy it into the packettracer/ dir.

4. Create the package with the command makepkg (it creates a packettracer.pkg.tar.xz).

cd packettracer/
makepkg

5. Install the package with either makepkg -i or sudo pacman -U packettracer.pkg.tar.xz.

sudo pacman -U packettracer.pkg.tar.xz

Packettracer 7.2.2 are auto installable via run file, download it from netacad webpage and run it, you don't need this package.

Fonte:https://aur.archlinux.org/packages/packettracer