Icmp

Perl Advanced TCP Hijacking is a collection of tools for inspecting and hijacking network connections written in Perl. It consists of a packet generator, an RST daemon, a sniffer, an ICMP redirection tool, an ARP redirection tool, an IDS testing tool and other. If your system supports Perl just... Platforms: *nix

Sawdog (Simple Active Watch-DOG) is a suite of scripts that informs the system operators of mission critical servers in the case of a failure. A set of small executables (i.e. expect scripts) are executed, and if one executable fails, it sends an email or an SMS to the sysop. There are 3 states... Platforms: *nix

ICPLD is a connection monitor which allows you to keep track of your network connection perfomance. It will log each occasion of broken networking. icpld runs as a background process, and sends ICMP requests to an ip of your choice. When a reply isnt received within proper amount of time, it... Platforms: *nix

Softflowd project is flow-based network traffic analyser capable of Cisco NetFlow data export. Softflowd semi-statefully tracks traffic flows recorded by listening on a network interface or by reading a packet capture file. These flows may be reported via NetFlow™ to a collecting host or... Platforms: *nix

GenIP is a small utility, based on the NMap target specification code, for quickly and easily generating lists of IP addresses. Usage: genip [ -h ] [ -i filename ] [ < target-spec > ... ] genip -r < ipaddress > < ipaddress > Options: -h Display uage information. -i Read target... Platforms: *nix

Autostatus is a network and server monitoring program. The project is designed to support large, arbitrarily complex networks of computers, and still provide feedback in a very timely fashion. To that extent, it has the following goals: - Speed - Autostatus attempts to probe for network status... Platforms: *nix

bandwidthd tracks usage of TCP/IP network subnets and builds HTML files with graphs to display network utilization. Charts are built by individual IP to show their utilization over 2, 8, 45, and 400 day periods. It color codes HTTP, HTTPS, TCP, UDP, ICMP, VPN, and P2P traffic. BandwidthD runs... Platforms: *nix

IPMENU is a user interface to Netfilter/iptables and Linux policy routing or traffic control, allowing you to edit firewall rules and configure the firewall to "mark" packets for policy routing or for class based queueing (CBQ). Netfilter is the Linux 2.4 subsystem for configuring a multi-homed... Platforms: *nix

Web Interface for SIP Trace is a PHP Web Interface that permits you to connect on a remote host/port and listen/filter. Web Interface for SIP Trace was born as a prof concept of the idea to capture SIP traffic from a remote host (SIP Proxy, Gateway, etc) and show up alive SIP messages about an... Platforms: *nix

Nest provides a secure IP VPN cryptographically protected packet tunnel. Nest is a secure IP VPN tunnel for FreeBSD. It connects two LANs over an insecure WAN. Nest works on the IP packet level. Its features include packet authentication and integrity checking (with 96-bit SHA1-derived HMAC),... Platforms: *nix

nefu (network fidelity utility) is a Unix daemon that monitors services over the network. Natively-monitored protocols include ICMP echo (ping), SSH, IPP, DNS, HTTP, POP, NTP, IMAP, SMTP, and LDAP, as well as having facilities to execute external programs. Status pages are available via finger or... Platforms: *nix

NetSplitter is a ( user-level ) network load-balance. It is like a transparent-proxy and will balance ( output ) TCP connections on multiples links. Linux NAT add/remove code is incomplete. NetSplitter will use the system() function to run the iptables to handle this. Step 1) IPTABLES Tell... Platforms: *nix

Perlipq is a Perl extension to Linux iptables userspace queueing via libipq.Packets may be selected from the stack via the iptables QUEUE target and passed to userspace. Perlipq allows these packets to be manipulated in Perl and passed back to the stack. This is version 1.25, released for... Platforms: *nix

libping is a C library designed to allow a programmer to make ICMP_ECHO requests directly from a script or program. libpings functions return either boolean--is alive--or the round trip time in milliseconds. The library also includes support for "pinging" the following tcp/ip services: echo,... Platforms: *nix

IPTables log analizer displays Linux 2.4 iptables logs (rejected, acepted, masqueraded packets...) in a nice HTML page (it support rough netfilter logs but also Shorewall and Suse Firewall logs). This page shall be easy to read and understand to reduce the manual analysis time. This page... Platforms: *nix

fixsrcip is a tool for binding outgoing TCP and UDP client sockets (IPv4) to specific source IP addresses on multi-homed hosts. It requires a current Linux system. fixsrcip tool uses LD_PRELOAD for preloading a small shared object to executables. The shared object overwrites the connnect() (for... Platforms: *nix

pingx is utility that uses the XNoOp(3x) call to see how fast your connection to your X server. Wonder whether your X performance is slower in a SSH tunnel? pingx can give you hard numbers so you can find out. It has an option to print out some details about the X server as well. Its also useful... Platforms: *nix

ngrep project strives to provide most of GNU greps common features, applying them to the network layer. ngrep is a pcap-aware tool that will allow you to specify extended regular or hexadecimal expressions to match against data payloads of packets. It currently recognizes TCP, UDP, ICMP, IGMP... Platforms: *nix

Linux IP Firewalling Chains is an update to the 2.0 Linux Firewalling code, for the 2.2 Linux kernel. It is required to administer the IP packet filters in Linux kernel versions 2.1.102 and above. The older Linux firewalling code doesnt deal with fragments, has 32-bit counters (on Intel at... Platforms: *nix

Pixilate is a commandline packet generation utility that reads Cisco PIX 6.2x or Cisco IOS ACLs as input and generates the appropriate packets. pixilate is currently capable of generating TCP/UDP/ICMP (various ICMP types), and IGMP utilizing the Libnet 1.1.x library available from... Platforms: *nix