Seagull is a multi-protocol traffic generator. Especially targeted towards IMS, Seagull supports Diameter (RFC3588 and all applications) over TCP/SCTP and IPv4/IPv6 , TCAP (over SS7 or Sigtran), XCAP over HTTP and Radius. I wanted to build and use Seagull on ReaHat Enterprise Server 6.5 for Diameter protocol testing and fixup some bugs.
