Category Archives: IPv4 to IPv6 network transformation

Dealing with IPv6 and Cisco IOU (IOS on Unix)

Recently I had the following issue with getting working IPv6 on Cisco IOU. R1#sh ipv6 int e0/0 Ethernet0/0 is up, line protocol is up IPv6 is stalled, link-local address is FE80::C00:FF:FE00:6500 [DUP] No Virtual link-local address(es): Global unicast address(es): 2001:470:1F0B:ABD::10, … Continue reading

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Курсове към програма Мрежово инженерство, деп. Телекомуникации на НБУ

Въведение Представям кратък обзор на курсовете, които съм предложил към програма мрежово инженерство на деп.  Телекомуникации.  Програмата ще започне от следващата учебна година (2014/2015). Основната ѝ цел е да даде добри изходните перспективи за намиране на работа в България на завършилите … Continue reading

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Posted in IPv4 to IPv6 network transformation, MPLS Core Networks, Network Architecture Evolution, NGN Backbone Networks | Tagged , , | Leave a comment

An approach and a tool for IP network state-to-state transformation

Abstract— The article presents an approach and a tool for network state-to-state transformation. Each network has a state. The state could be formalized into an architectural graph data model that contains network nodes, edges and key metadata. The state-to-state transformation … Continue reading

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Posted in IPv4 to IPv6 network transformation, Network Architecture Evolution, OSS/BSS | Tagged , , | Leave a comment

Clean state vs Evolutionary research?

Obviously the current IP networks and the Internet as an ecosystem integrating many other IP networks are far away from perfection. Obviously comes the question shall we try to redesign it avoiding all the mistakes that were done and start … Continue reading

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Masters Program – Embedded Systems, NBU

I would like to present you something new and interesting – an early bird in Bulgarian IT Masters programs and one of the few that will really give students a chance to design and develop their own products in an … Continue reading

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NAT64+DNS64

Това е задачата за отличници тази година.  Както и миналата година задачата не е директно свързана с тематиката на курса. Както и преди тя не е задължителна. Решаването й заменя решаването на коя да е от другите задачи по ваш … Continue reading

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IPv4to6 Migration, A Network Operators Overview

Stuart Sheldon has described his experience with IPv4 to IPv6 Migration. # Selecting your transition method # Notes about IPv6 and security # Choosing your hardware # Recommended Deployment Strategy You may checkout the whole post here Nikolay Share and … Continue reading

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4to6TRANS dsc2010 conference participation

The project concepts, objectives and current status were officially presented on the “5th South East European Doctoral Student Conference”, 13 – 14 September 2010, Thessaloniki – Greece. You may find the presentation from the event here. And the article itself … Continue reading

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Dealing with Cisco IPv6

Cisco supports the protocol indeed but what features are supported in which version of IOS/IOS-XR…. Well this is the tricky part. A good place to start is here. If you do not really care about cisco and their stuff just … Continue reading

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Seminar – Comparing IPv4 to IPv6 VPN encryption

Lecturers Nikolay Milovanov Georgi Ribarski Agenda IPSEC VPN encryption overview Changes that comes with IPv6 Demo Tunnel transformation You may download the presentation from the seminar from here. Dynagen file from here. Configs: R1, R2, R3, R4; Where – NBU … Continue reading

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