n2n's Scratchpad

RPM Packaging

bash
./autogen.sh
./configure
make

cd packages/rpm
./configure
rpmbuild -bb ./n2n.spec

Federated supernodes to allow multiple supernodes for load balancing and fail-over (doc/Federation.md)
Automatic IP address assignment allows edges to draw IP addresses from the supernode (just skip -a)
Allowed community names can be restricted by regular expressions (community.list file)
Network filter for rules (-R) allowing and denying specific traffic to tunnel
Experimental TCP support (-S2) lets edges connect to the supernodes via TCP in case firewalls block UDP (not available on Windows yet)
All four supported ciphers offer integrated versions rendering OpenSSL dependency non-mandatory (optionally still available)
MAC and IP address spoofing prevention
Network interface metric can be set by command-line option -x (Windows only)
Re-enabled local peer detection by multicast on Windows
Edge identifier (-I) helps to identify edges more easily in management port output
Optionally bind edge to one local IP address only (extension to -p)
A preferred local socket can be advertised to other edges for better local peer-to-peer connections (-e)
Optional edge user and password authentication (-J, -P, doc/Authentication.md)

Increased edges' resilience to temporary supernode failure
Fixed a compression-related memory leak
Ciphers partly come with platform-specific hardware acceleration
Clean-up management port output
Polished benchmark tool output
Spun-off the name resolution into a separate thread avoiding lags
Implemented new reload_communities command to make supernode hot-reload the -c provided community.list file, issued through management port
Reactivated send out of gratuitous ARP packet on establishing connection
Enhanced documentation (doc/ folder) including the man pages and command-line help text (-h and more detailed --help)
Self-monitoring time stamp accuracy for use on systems with less accurate clocks
Fixed man pages' and config files' paths
Code clean-up