JVPN is a Perl script to connect to the Juniper VPN with Host Checker enabled.
New version (0.7.0) adds host checker support, as well as some other features and bug fixes:
+ Added experimental code to run host checker from jvpn
+ Include LWP traffic dump in the debug output
+ Added sample script to restore original DNS settings after connect
+ Added experimental grid cards support
# fixed processing of last line w/o \n character in configuration file
Download location could be found in JVPN post.