17-07-2014, 09:41 AM
SECURITY IN WIRELESS MESH NETWORK
SECURITY IN WIRELESS MESH.ppt (Size: 40 KB / Downloads: 16)
WIRELESS MESH NETWORK
Self-configuring , self-healing and self-organising
Easily scalable
Mobile
Dynamic
Security challenges
The characteristic of architecture and structure of WMN are susceptible to security challenges
The distributed sequenced network architecture and vulnerability of the shared wireless medium in the channel access and neighborhood clients information exchanges expose the WMN to security attacks
Attacks and security impairments in WMN
Signal jamming
Distributed denial of service (DDoS)
Battery exhaustion attacks
Wormhole attack
Blackhole attack
Location disclosure attacks
False message attacks
Attacks and security impairments in WMN (contd..)
Rushing attack
Spoofing of wireless infrastructure
Theft of service attacks
Traffic flooding attacks
Route cache and table overflow attack
Resource depletion attack
Forging
DNS spoofing
Tampering and physical attack
Analysis of security attacks
In Wireless Mesh Network the security attacks are mostly interception of links and packets,denial of service attacks (DoS)
The denial of service is a major security attack that frequently occurs
In distributed –sequenced traffic processing wireless network ,it results in a worse scenario called DDoS attack
Existing security measures in WMN
Authentication
Cryptography
Encryption
Firewall
WEP and WAP
Intrusion detection
IP access-list filtering and control
IP virtual private network traffic
Mesh security management
Web-mesh application managed security control and
Traffic engineering multi-protocol security mesh