Re: SSL vs IPSec VPNs

[Carlos Perez <carlos_perez () darkoperator com>]

SSL Strip does not work on a full SSL VPN, I have tried ;), I would say it depends on the traffic, amount of traffic 
and how time sensitive is that traffic. SSL over UDP gives the best performance but you have a big pain of certs and 
cert validation to minimize the attack surface, on the IPSEC depending on the implementation you can get the most 
compatibility for different client types but on high traffic with time sensitive traffic you will get fragmentation and 
possible replay problems. There are a lot more pros and cons but after 5 days of hospital I'm bone tired from sleeping 
on a chair, when I get coffee in me in the morning I will try to expand on the points.

Cheers,
Carlos

On Oct 19, 2010, at 9:41 AM, Michael Douglas wrote:

> Hey all,
>
> I'm trying to determine what protocols should be permitted on a new
> VPN concentrator.
>
> I'd like to stick with IPSec, it's tried and true, and to quote Garth:
> "We fear change".  However, it seems that all the vendors are going
> down the SSL route.  Now I know SSL is 'safe', but it seems like it's
> more open to attacks like SSLStrip (thanks again Moxie for making us
> aware of the problems!)  I get that SSL is easier for administrators
> and end users alike, but is that convenience at too high a cost?
>
> So what are your thoughts?  Am I being too paranoid?  If there are
> articles or places where I should RTFM, that's cool... I just need to
> know what FM to read!!  Please send the links/info  ;-)
>
>
> Thanks for your input, and have a nice day!
> - Mick
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