Nemesis is a command-line network packet crafting and injection utility for UNIX-like and Windows systems. Nemesis, is well suited for testing Network Intrusion Detection Systems, firewalls, IP stacks and a variety of other tasks. As a command-line driven utility, Nemesis is perfect for automation and scripting.

Nemesis can natively craft and inject packets for:

ARP
DNS
ETHERNET
ICMP
IGMP
IP
OSPF
RIP
TCP

UDP

Using the IP [...]

LFT
LFT, short for Layer Four Traceroute, is a sort of ‘traceroute’ that often works much faster (than the commonly-used Van Jacobson method) and goes through many configurations of packet-filters (firewalls). More importantly, LFT implements numerous other features including AS number lookups through several reliable sources, loose source routing, netblock name lookups, et al.
What makes LFT [...]

SinFP is a new approach to OS fingerprinting, which bypasses limitations that nmap has.
Nmap approaches to fingerprinting as shown to be efficient for years. Nowadays, with the omni-presence of stateful filtering devices, PAT/NAT configurations and emerging packet normalization technologies, its approach to OS fingerprinting is becoming to be obsolete.
SinFP uses the aforementioned limitations as a [...]

arp-sk is basically an ARP Traffic Generation Tool. It’s quite old but still very useful!
There are 2 basics mode:
– who-has: build a request ARP message.
– reply: build a reply ARP message (default)
Other advanced modes should come very soon
– arping: send a who-has to every host on the LAN to [...]

I saw a Freeware MAC Address Changing tool today which I thought I’d share with you all, as I used to use SMAC, a nice tool, until the guy started charging for it!
Hopefully this one won’t go the same way.
Technitium MAC Address Changer, which allows you to change Machine Access Control (MAC) Address of your [...]