If you access Internet through a HTTP proxy, you need to configure a few Maperitive settings:
Once configured, these settings will be saved in your user settings file and will be used every time you run Maperitive.
Here is a sample script which configures the HTTP proxy access using authentication:
set-setting name=web.proxy.host value=myproxy.com set-setting name=web.proxy.port value=553 set-setting name=web.proxy.username value=john set-setting name=web.proxy.password value=nobodyknows set-setting name=web.proxy.use-proxy value=true