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encrypting a point to point connection

Posted on 2008-10-25
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Last Modified: 2012-05-05
helo , can someone suggest what would be easiset way to encrypt a point to point conenction using cisco routers. encrypting data between CO and remote on a serila link.
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Question by:Huzzain
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by:kyleb84
ID: 22804185
Cisco will usually use PPP over a (Layer 2) serial link. PPP is encrypted.

The alternative would be a layer 3 managed link, in which case you've probably got an IPSEC tunnel in place anyway.

Can you give us any more info on the link and router models?
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by:Huzzain
ID: 22804229
hi
 what i currently hav is 2 wire copper leased line connecting the two offices. what im thinking is using Cisco 878 G.SHDSL routers as CPE on both ends. sorry i mentioned as serial link earlier...
 
 i would preferably like to configure a Ethernet bridge (use same subnet on both sites) and want to creat a encrypting mechanism between the two routers.

thanks
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kyleb84 earned 100 total points
ID: 22804277
I don't think Cisco 878's can do back to back G.SHDSL....

You probably looking for a couple of 1800's they definitely do it.

And here's a Cisco config guide:
http://www.cisco.com/en/US/docs/ios/bbdsl/configuration/guide/bba_atm_shdsl_ps6441_TSD_Products_Configuration_Guide_Chapter.html#wp1061803

You won't need encryption because it's a point to point link, and disruption to the line (if someone tries to "listen in") will kill the link.

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