Free ip software for linux

IPy is a Python class and tools for handling of IPv4 and IPv6 addresses and networks. The script is similar to the Net::IP Perl module.
The IP class allows a comfortable parsing and handling for most notations in use for IPv4 and IPv6 Addresses and Networks. It was greatly inspired bei RIPEs Perl module NET::IPs interface but doesnt share the Implementation. It doesnt share non-CIDR netmasks, so funky stuff lixe a netmask 0xffffff0f cant be done here.
>>> from IPy import IP
>>> ip = IP(127.0.0.0/30)
>>> for x in ip:
... print x
...
127.0.0.0
127.0.0.1
127.0.0.2
127.0.0.3
>>> ip2 = IP(0x7f000000/30)
>>> ip == ip2
1
>>> ip.reverseNames()
[0.0.0.127.in-addr.arpa., 1.0.0.127.in-addr.arpa.,
2.0.0.127.in-addr.arpa., 3.0.0.127.in-addr.arpa.]
>>> ip.reverseName()
0-3.0.0.127.in-addr.arpa.
>>> ip.iptype()
PRIVATE
Enhancements:
- This release is able to parse any IPv4 and IPv6 address in many formats with or without netmask.

IPlib is a Python module to convert between many different IP address notations and to manage netmask/address pairs in the CIDR notation.

Some example scripts ("ipconv", "nmconv", and "cidrinfo") are included.

CIPE is a Crypto IP Encapsulation.
This is an ongoing project to build encrypting IP routers. It works by tunneling IP packets in encrypted UDP packets. The protocol is designed to be lightweight and simple. Special care has been taken to make this work over dynamic addresses, NAT and SOCKS proxies.
Implementations are currently available for Linux and Windows.
Enhancements:
- This supports Linux 2.6 and the kernel crypto API.

external IP shows your current external IP in the browsers statusbar.

External IP is set to check your IP address once every hour.

ShowIP is a Firefox extension that can show the IP address of the current page in the status bar.

It also allows querying custom services by IP (right mouse button) and Hostname (left mouse button), like whois, netcraft. Additionally you can copy the IP address to the clipboard. This extension was formerly known as ipv6ident.

IP::Country is a tool for fast lookup of country codes from IP addresses. Finding out the country of a client using only the IP address can be difficult.

Looking up the domain name associated with that address can provide some help, but many IP address are not reverse mapped to any useful domain, and the most common domain (.com) offers no help when looking for country.

IP::Country module comes bundled with a database of countries where various IP addresses have been assigned. Although the country of assignment will probably be the country associated with a large ISP rather than the client herself, this is probably good enough for most log analysis applications, and under test has proved to be as accurate as reverse-DNS and WHOIS lookup.