UBridge

This is an example of a userspace network bridge for linux that uses the new packet mmap interface.

Even though it runs in userspace, the packet switching is quite fast.

The main switching boils down to a single memcpy() in src/ring.c:266.

Supports TP_STATUS_CSUMNOTREAD for checksum offloading on virtual interfaces.

Author

Benjamin Kittridge

bysin@bysin.net

http://byteworm.com

Usage

Usage: ubridge [OPTIONS]...
  --debug     Run in foreground and print packets
  --src [if]  Source interface
  --dst [if]  Destination interface
  --help      Displays this help screen
  --version   Displays version information

Example: ubridge --debug --src vif1.0 --dst eth0