Chapter 3 spoofing 3 1 arp spoofing
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Chapter 3. Spoofing (3.1 ARP Spoofing). Hoon Ko [email protected] Office# 460, Department of Informatics, J. E. Purkinje University. MAC Table. MAC table set: to protect attacks from IP conflict or spoofings. Install before test. Libnet Libpcap DB (Berkeley Database

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Chapter 3. Spoofing (3.1 ARP Spoofing)

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Chapter 3 spoofing 3 1 arp spoofing

Chapter 3. Spoofing(3.1 ARP Spoofing)

Hoon Ko

[email protected]

Office# 460, Department of Informatics,

J. E. Purkinje University


Mac table

MAC Table

  • MAC table set: to protect attacks from IP conflict or spoofings


Install before test

Install before test

  • Libnet

  • Libpcap

  • DB (Berkeley Database

  • Libnidis (Library Network IDS)

  • OpenSSL


Libnet

Libnet

Root# ./configure

Root# make

Root# make test

Root# make install


Libcap

Libcap

Root# ./configure

Root# make

Root# make install


Db berkeley database

DB (Berkeley Database)

Root# cd build_unix

Root# ../dist/confiugure --enable-compat185

Root# make

Root# make install


Libnidis library network ids

Libnidis (Library Network IDS)

Root# ./configure

Root# make

Root# make install


Openssl

OpenSSL

Root# ./config

Root# make

Root# make test

Root# make install


Arp spoofing

ARP Spoofing

  • ARP: to know from IP address to MAC address

  • RARP: to know from MAC address to IP address


Chapter 3 spoofing 3 1 arp spoofing

  • ARP spoofing tool (fake-1.1.2.rpm)

    Root# rpm -Uvh fake-1.1.2-1.i386.rpm

  • Packet reply tool (Fragrouter 1.6)

    Root# ./configure

    Root# make


Chapter 3 spoofing 3 1 arp spoofing

  • ARP table before attacking

  • Relay function run before attacking

  • ARP Spoofing attack start


Chapter 3 spoofing 3 1 arp spoofing

  • ARP table after attacking

  • Fragrouter that it still is attacking


Chapter 3 spoofing 3 1 arp spoofing

  • TCPdump / windump check

    • Catch ‘ls’ typing of client


How to protect

How to protect?

  • Set the static MAC table

    • ex) arp –s IP address MAC address


  • Login