Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Encryption on the LAN

We have two sites linked via fibre and would like to encrypt traffic between these two sites. We have multiple networks setup and require that these can pass through sites.

Does anyone have any ideas how to do this?

  • Other Security Subjects
4 REPLIES
New Member

Re: Encryption on the LAN

If you are connected by private fiber cable, you don't really need to encrypt traffic. Since it will greatly affect the performance. If you really want to encrypt traffic, as it is site-to-site encryption on LAN, you may consider Network Layer encryption instead of VPN. For IOS Network Layer encryption, you can find more information as following link:

http://www.cisco.com/warp/public/cc/so/neso/sqso/eqso/encrp_wp.htm

New Member

Re: Encryption on the LAN

The fibre links are provided by a telco. The concern is within the Telco and as such would like to encrypt before it hits the Telco.

The links are directly connected to Cat 6513's so there is no layer 3 device in between.

Any ideas?

New Member

Re: Encryption on the LAN

If it is layer 2, you may consider external encryptor such as cylink. Another alternative to encryption is data compression with QoS device such as Expand. Since data compression has its own compress algorithm and ratio. If the far end does not match it, it can read the data as well. Of course, encryption is more powerful and high security level. If you wish to use either encrytor or data compression device, you may contact your local suppliers with your requirement to see what kind of products they can offer.

Otherwise, you need to upgrade your switches to layer 3 capable or adding external routers upon your connection types such as Trunk mode, Port mode or fiber channel.

New Member

Re: Encryption on the LAN

The requirement is layer 2.

I'm unable to track down a website (that works) for Cylink (www.cylink.com not working)

Have you used them in the past? Where can i get information on their products..

Thanks for your help!

104
Views
0
Helpful
4
Replies