click-mode is an Emacs major mode for editting Click Modular Router configuration files. It provides basic syntax highlighting and indentation, making click files nearly comprehensible!

click-mode is available on melpa. You can install it with:

M-x package-install RET click-mode RET

Then simply open a .click file and enjoy!

You may also want to add this to your .emacs:

(add-to-list 'auto-mode-alist '("\\.template\\'" . click-mode))
(add-to-list 'auto-mode-alist '("\\.inc\\'" . click-mode))