Summary

International Conference on Emerging Technologies for Communications

2020

Session Number:D1

Session:

Number:D1-3

A route inheriting scheme for maintaining dynamic routes cleanly in a metabolic router

Yu TAMURA,  Yuta MIYAOKA,  Junichi MURAYAMA,  

pp.-

Publication Date:2020/12/2

Online ISSN:2188-5079

DOI:10.34385/proc.63.D1-3

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Summary:
In the near future, network routers would be targeted by many cyber attacks using malware programs. Such programs may tamper router's packet forwarding table for assisting phishing attacks. One of the countermeasures against such attacks is periodical router initialization. This initialization needs to be achieved without packet forwarding interruption. Thus, replacing routers from the in-use one to the initialized one seems an attractive approach. However, in this approach, some destinations may become unreachable for a while. This is because dynamic routes are lost due to router replacement. Although those lost routes can be recovered from the neighbor routers using routing protocol, recovering latency would be large. This latency can be dismissed by means of copying routes from the after-use router. However, the copied routes may have been tampered. In order to solve this problem, we propose a route inheriting scheme using a route server. In this scheme, the route server is isolated from the router’s functions and maintains only clean dynamic routes. When the router is initialized, the server copies the dynamic routes to the router at once. After that, it copies only the updated routes periodically. Owing to this scheme, even if the packet forwarding table of the in-use router has been tampered, only clean routes are inherited rapidly to the initialized router.