[c-nsp] IP Tunneling Question

Ge Moua moua0100 at umn.edu
Tue May 19 16:24:36 EDT 2009

What seems to be gaining popularity is a "GRE-like" tunnel with IPSec 
encapsulation; Cisco calls this "IPSec VTI"; caveat is that equipment in 
question may need to be Csico based.

Ge Moua | Email: moua0100 at umn.edu

Network Design Engineer
University of Minnesota | Networking & Telecommunications Services

Charles Wyble wrote:
> All,
> I'm looking to setup a VPN with a couple colocation providers who are 
> friends of mine, and have some under utilized address space. They are 
> supporting some security research I am doing (a darknet/honeynet). [1]
> I am exploring different options to utilize that IP space on my lab 
> servers.
> How do folks typically accomplish IP tunneling? IPSEC tunnels? Do you 
> use GRE? What about OpenVPN?
> I can easily setup any of the above mentioned approaches as howtos 
> abound. Just wondering if there is anything to consider for this 
> scenario to reduce overhead and packet molestation as much as possible.
> Thanks.
> [1] If more information is desired please see my blog at 
> http://cnwccxx.blogspot.com/ I'll be posting there on various 
> visualization tools and methodologies etc.
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