IPplan is a Web-based, multilingual IP address management and tracking tool which simplifies the administration of your IP address space. It can handle a single network or multiple networks with overlapping address spaces. It features DNS administration, internationalization, importing of network definitions from routing tables, importing of definitions from TAB-delimited files and NMAP's XML format, support for multiple administrators with different access profiles (per group, per customer, per network, etc.), definitions of address space authority boundaries per group, finding free address space across a range, display of overlapping address spaces between networks, search capabilities, an audit log, statistics, circuit tracking, and tracking and sending SWIP/registrar information.
KVpnc is a KDE frontend for various VPN clients. It supports Cisco VPN (vpnc, vpnclient (a proprietary client from Cisco)), IPSec (FreeS/WAN, Openswan, strongSwan, racoon), PPTP (pptpclient), OpenVPN, L2TP over IPSec (l2tpd, xl2ltpd, openl2tp) (usable with FreeS/WAN, Openswan, strongSwan, and racoon), Vtun, and OpenSSH. Smartcards will be supported within OpenVPN and strongSwan. vpnc is a replacement for the Cisco VPN client, and is used as a client for the Cisco3000 VPN Concentrator. FreeS/WAN, Openswan, and strongSwan are IPSec clients for Linux 2.4.x/2.6.x, and racoon is an IPSec client for Linux 2.6.x and *BSD. l2tpd, xl2tpd, and openl2tp are Linux L2TP VPN clients/servers.