CMPnet: VPNs Enter -- The Extranet Realm -- IT... -
[Cached Version]
Published on: 6/21/1999
Last Visited: 8/14/2000
"This may not seem leading edge," says Steve Clark, director of information services at Madison Building and Construction Co."But we used to have people at construction sites running to the nearest Kinko's to fax a 50-page project summary."
When Clark suggested sharing the files by e-mail, some of the contractors expressed concerns about the security of sending the documents over Internet e-mail.That led Clark to opt for a VPN.
At first, Clark tried to get all the contractors to use a single ISP.But some of the contractors objected, saying they had their own ISP accounts and did not want to incur the cost of using an additional one.
With a VPN extranet, it really does not matter whether all the participants use the same ISP.All that's required is for each member of the group to have some type of access to the Internet.The VPN software or equipment in each site must simply be configured with the IP address of the VPN equipment in the main site of the extranet.That way, the traffic exchanged by members of the extranet group can be carried over multiple providers' networks.
...
"Our expertise has been in networking," says Madison's Clark.
Many financial institutions have used encryption and PKIs for years.But the majority of companies outside of that industry are in Clark's situation and lack in-house expertise.This is why some companies are looking for outside help in managing their extranet VPNs.
"A PKI is essential for providing user authentication," says Johna Till Johnson, an analyst at Meta Group, a research and consulting group.
"But administering the PKI for an entire supply chain is a daunting challenge," says Johnson.