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Joined: Apr 26, 2005
Posts: 54

I was listening to a podcast today about VPNs, and it said that the 'plain text' packet is wrapped in a VPN packet and then encrypted via IPSEC with ther source and destination IPs encrypted as well. My question is, if the destination IP is encrypted how does the packet get there?


Gagan Indus
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Joined: Feb 28, 2001
Posts: 346

My understanding is that the destination IP of the packet that is embedded is encrypted, but the destination IP address of the VPN packet itself isn't encrypted (The payload of the VPN packet is another packet, and this whole payload is completely encrypted but other parts of the packet are just like any other normal packet). But again, IANASA (I am not a Security Analyst)

PS: Was this on Steve Gibson's Podcast? That one is so much fun.

Gagan (/^_^\) SCJP2 SCWCD IBM486 <br />Die-hard JavaMonk -- little Java a day, keeps you going.<br /><a href="" target="_blank" rel="nofollow">My Blog</a>
Ranch Hand

Joined: Apr 26, 2005
Posts: 54

yeah, thats what yopu would assume - bbut Steve didnt really address it. Your right, those podcasts are great!
I agree. Here's the link:
subject: VPN
It's not a secret anymore!