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tcpreplay - Pcap editing and replay tools for *NIX and Windows - Users please download source from

  •    C

Tcpreplay is a suite of GPLv3 licensed utilities for UNIX (and Win32 under Cygwin) operating systems for editing and replaying network traffic which was previously captured by tools like tcpdump and Ethereal/Wireshark. It allows you to classify traffic as client or server, rewrite Layer 2, 3 and 4 packets and finally replay the traffic back onto the network and through other devices such as switches, routers, firewalls, NIDS and IPS's. Tcpreplay supports both single and dual NIC modes for testing both sniffing and in-line devices.Tcpreplay is used by numerous firewall, IDS, IPS, NetFlow and other networking vendors, enterprises, universities, labs and open source projects. If your organization uses Tcpreplay, please let us know who you are and what you use it for so that I can continue to add features which are useful.

syncookied - syn flood protection

  •    Rust

syncookied emulates linux kernel syncookie functionality by intercepting SYN packets and sending replies to them using the same cookie generation alghorithm. It can achieve better performance under SYN flood attacks thanks to kernel bypass (netmap). Note: we use AVX-accelerated SHA1 function by default. SSE3 implementation is also available under sse3 feature flag, i.e.: cargo build --features=sse3 --no-default-features --release.






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