تابر مواقم لرتنك هلاقم نيا رد ينيعمان و يجراخ تاشاشتغا دوجو اب رايس ياه متسيس يرتماراپ ياه كيمونولوهريغ يكيتامنيس ديق هك يكيمانيد ١ ار شزغل مدع هدروآرب يمن تسا هتفرگ رارق يسررب دروم ،دننك . هدش زكرمتم يكيتامنيس لرتنك يحارط يور رب هك يلبق ياهراك فلاخرب ساسا رب رواتشگ مواقم رلرتنك كي ،دنا هب ،ميظنت لباق ناسون سناكرف اب اريم كيمانيد رگناسون هناگي شور كي تروص ٢ يبايدر هلأسم ود ره يارب ابر يزا...

ةصلاخلا : برتلا تارفيش تذوحتسا دقل و ً ارخؤ م ب سب نيثحا بلا نم ر يثكلا ما متها ى لع ب أ هابلا ا هئاد ـ د نع ر ـ ل ةضفخنملا مي قلا ) SNR .( اًءز ج ر ثعبملا ر بتعيو اً ماه شلا هذ ه ميمصت ن م في تار . م ظعم ضرتفتو لأا ،ةيئاوشع تار ثعبم لاجملا اذه يف ثاحب أ سرد نف ثحبلا اذ ه يف ا م أ مادختساب و برت تارفي ش ءاد ّ يفص تارثعبم ،ة و ب ةقلعتملا لماوعلا نم ديدعلا أ د اهئا ميمصت لثم ، أ لوط ريثأ تو ،ةيفصلا...

Even though IP VPN has practically proven itself to be a cost-effective solution, the lack of centralized network management capabilities of current IP VPN deployment makes the management of growing VPN networks an extremely tedious procedure. This paper proposes to use policy-based network management method to address this challenge. Firstly, a policy-based IP VPN management architecture is pr...

In the course of carrying out its mission the primary challenge facing e-gov is how to deliver secure online services to businesses and citizens. For this paper, the Virtual Private Network (VPN) will be the solution selected to deal with this challenge. VPN can resolve these issues by simplifying and speeding the delivery of on-line services and information to citizens, businesses, and inter-a...

BGP/MPLS VPN is a mechanism defined in IETF RFC 2547 that allows service providers to use their IP backbone to provide VPN services. This mechanism is based on using BGP to distribute VPN routing information to the routers in the backbone network and using MPLS to forward VPN traffic. MPLS tunnels are created dynamically when needed, which relieves service providers of pre-provisioning tens of ...

The purpose of this thesis is to present a prototype system for the verification of LabVIEW programs using ACL2. LabVIEW is a graphical data-flow programming language commonly used in data acquisition and control application. ACL2 is a programming language, formal logic and theorem prover that has seen broad use in the verification of industrial hardware and software systems. I will present an ...

However, growing VPN sizes and a dynamic behavior of VPN gateways and clients, e.g., for mobility reasons or perhaps reactions due to denial-of-service (DoS) attacks, make a manual configuration of large, dynamic VPN complicated and expensive. First, the administrative overhead is subject to a quadratic growth with the number of VPN devices, if each VPN device shall be able to communicate with ...

Virtual Private Networks (VPNs) are widely recommended to provide security for otherwise unsecured industrial and SCADA communication protocols. VPNs provide confidentiality, integrity, and availability and are often considered secure. However, implementation vulnerabilities and protocol flaws have exposed VPN weaknesses in many deployments. In this work, we use probabilistic modeling to evalua...

With rapid growth in use of multimedia applications, including IP Telephony (also known as Voice over IP), the demand for security and privacy of communications has significantly increased. Given the fact that IP Telephony utilizes public IP infrastructure, deployment of IP VPN is one approach to protect traffic of interest. However, VPN is presumed to have a negative impact on VOIP performance...