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Nmap IPv6 addresses

July 24, 2010 by Igor Drobot Leave a Comment

When conducting a penetration test against an IPv6 enabled system, the first step is to determine what services are accessible over IPv6. Then you should close unnecessary ports for third persons ; for example SSH.

Consider the Nmap results below

Easy portscan syntax:

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root@acer:~# nmap -6 2001:470:1f0b:1604::3

root@acer:~# nmap -6 2001:470:1f0b:1604::3

A little bit complexer syntax without DNS resolution, and a predefined port range:

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root@acer:~# nmap -6 -p1-10000 -n 2001:470:1f0b:1604::3 -PN

root@acer:~# nmap -6 -p1-10000 -n 2001:470:1f0b:1604::3 -PN

Output:

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Starting Nmap 5.00 ( https://nmap.org ) at 2010-07-24 19:16 CEST
Interesting ports on 2001:470:1f0b:1604::3:
Not shown: 9989 closed ports
PORT    STATE    SERVICE
21/tcp  open     ftp
22/tcp  open     ssh
53/tcp  open     domain
80/tcp  open     http
110/tcp open     pop3
143/tcp open     imap
443/tcp open     https
623/tcp filtered unknown
664/tcp filtered secure-aux-bus
993/tcp open     imaps
995/tcp open     pop3s

Starting Nmap 5.00 ( https://nmap.org ) at 2010-07-24 19:16 CEST Interesting ports on 2001:470:1f0b:1604::3: Not shown: 9989 closed ports PORT STATE SERVICE 21/tcp open ftp 22/tcp open ssh 53/tcp open domain 80/tcp open http 110/tcp open pop3 143/tcp open imap 443/tcp open https 623/tcp filtered unknown 664/tcp filtered secure-aux-bus 993/tcp open imaps 995/tcp open pop3s

Filed Under: IPv6, Linux, Networking, Nmap Tagged With: IPv6 security, Nmap IPv6

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