Wireless Mesh Networks (WMNs) are the hybrid networks having fixed infrastructure of gateways to provide the Internet connectivity to its fixed or mobile clients. It has redundant links to provide reliable communication. Anycast is an important service for the group communication. Field based routing is getting popularity due to its robustness and simplicity. In this paper, we have studies on the security issues for the anycast service based upon the field based routing. The scheme has been studied to eliminate the effects of the external intruders and also against the internal selfish nodes. The modified secure field based routing strategies have been proposed to safeguard the legitimate traffic from these external and internal intruders. The simulation results in OMNet++ simulator shows that the proposed techniques outperform the normal routing mechanisms.
Key words: Anycast, field base routing, security.
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