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Re: IPSEC Security Gateways & NAT
----- Original Message -----
From: "Chen, David" <dchen@ellacoya.com>
> Jayant,
> Does the "ESPinUDP" mean UDP/IP encapsulate IPSec packets?
Almost! ESPinUDP inserts an extra UDP header in IPSec packets.
In IPSec, the ESP header follows the IP header. In ESPinUDP
a UDP header follows the IP header and ESP header comes after
that.
IP header | UDP header | ESP header | encrypted payload
regards,
Jayant
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