Q
Problem solve Get help with specific problems with your technologies, process and projects.

Can information be intercepted or sniffed on a leased line?

If you have a dedicated/leased line, between two offices, can the information be intercepted or sniffed?
Dear Superbidderkid,
Yes, information can be intercepted or sniffed at either end or between your WAN links; the latter requires physical access to tap into your wire -- to protect against this, encrypt data between your sites. If your WAN routers use valid IP addresses, no access control list, and are not protected by a firewall, then these routers are exposed to external probes. Keep in mind, that if your routers are being monitored (pinged) by an outside company for high availability, ICMP should be restricted - both in your firewall and routers - to that company only.

Let me know if this provided the information you were seeking.

Thank you for submitting your question.
Luis

This was last published in July 2002

Dig Deeper on Network Security Monitoring and Analysis

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

SearchUnifiedCommunications

SearchMobileComputing

SearchDataCenter

SearchITChannel

Close