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MPLS & Leased Line

Posted on 2009-06-30
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Last Modified: 2012-05-07
1. I have a private WAN that are (not connected to Internet) using MPLS to connect a few separate geographical location LAN. HQ LAN communicate with all sisters company LAN, but other LAN has its own autonomy and separately controls.
What are the risks and threats that this network face? Can external intruder connect to MPLS network via the MPLS service provider network?
2. Same as above, but now the private WAN is using point to point leased line (E1 & E3) network to connect these LAN.
What are the risks and threats that this leased line network face? Can external intruder connect to this leased line network via the leased line service provider network?
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Question by:Arifnor
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by:willbaclimon
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The risk if very small, and in my opinion its the same MPLS vs Leased Line. Essentially a leased line is not a tin can with a wire straight to your building. Its physically shared.
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by:Arifnor
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Willbaclimon,

Great stuff on MPLS. It seems it's quite impossible to penetrate the MPLS network. But the IT guys here in my organization is saying it is possible, thus they implement Firewall for each LAN (but, I think it is not cost effective). (Note that this network does not connect to external network i.e. Internet)

How do someone want to penetrate MPLS and leased Line? Any other threat and risks to MPLS and leased line?

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by:giltjr
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--> But the IT guys here in my organization is saying it is possible

Have the shielded your building?  It is possible for me to go down to a local electronics store buy less than USD $100 worth of stuff and then start picking up the electronic signals from within your building and see your data.

Sure its possible to hack into a MPLS link, but as willbaclimon pointed out, it is also possible to break into a leased line.

Now is it plausible that some body could hack a MPLS circut?  No.

Technically there is not much difference between a MPLS link and a leased line.  In fact a MPLS link is a lease line to your building.  The major difference between MPSL and leased lines are the protocols uses at the "shared" level.  Just like willbaclimon stated, even leased lines are shared resources at some point in the connection.  They are not really a solid wire from one point to another.

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by:willbaclimon
willbaclimon earned 150 total points
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Well put
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by:Arifnor
ID: 24809675
Thanks to all of you. I have review all the answers and confirm this with the IT guys. I will close the question
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by:belgarriff
ID: 26358576
Just tried to follow the link listed in the solution http://www.fleetllc.com/portal/showthread.php?p=44

My sophos antivirus reported the following, so you might want to remove the link to the fleetlic site
Threat: Mal/ObfJS-F

Threat source : http://www.fleetllc.com/portal/showthread.php?p=44
The requested location contained malicious content and was blocked from downloading.
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