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DTP

Configure Access/trunk/Dynamic modes in Catalyst switches unconditionally

2008-04-20
By: admin
In: Cisco
Tagged: catalyst, Cisco, DTP, switch, trunk

In Cisco Catalyst switches, each switchport can be set to different VLAN Membership modes using the "switchport mode" command. This sets the port unconditionally. The different modes include If you’re new here, you may want to subscribe to my RSS feed. Thanks for visiting!Read More →

VLAN Hopping – Layer 2 Security exploit bypass Layer 3 security

2008-04-17
By: admin
In: Security
Tagged: 802.1Q, DTP, Layer2, Layer3, Security, switch-spoofing, vlan, VLAN-Hopping

VLAN Hopping is a Layer 2 security exploit by which a malicous user connected to a switchport on a Switch assigned to a VLAN can hop on and gain access to another VLAN which otherwise is not accessible. This security exploit allows the malicous hacker to bypass the IP Securities implemented at Layer 3.Read More →

Yersinia – Free Network Testing tool for CDP,STP,VTP,DHCP,DTP,ISL,802.1Q,802.1X

2008-02-19
By: admin
In: IP Tools, Security, Security/Penetration Testing
Tagged: 802.1Q, 802.1X, bpdu, CDP, DHCP, DTP, ISL, Network-Testing, stp, VTP, Yersinia

Yersinia is a free Network Penetration testing tool used to test and analyse some of the most commonly used protocols on your network. Penetration testing tools of this kind will provide deep insight on network security issues. Yersinia is a UNIX based tool that works on Linux, Solaris 8, FreeBSD. NOTE: The tool is described as a tool to perform network tests and exercise responsible actions when performing tests which includes obtaining the permission from responsible authorities. DO NOT USE THIS TOOL FOR ANY UNAUTHROSIED HACKING PURPOSESRead More →



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