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Re: [FW-1] IKE over TCP or UDP



zzdeb,

It's primarily for SR/SC behind a NAT device.

In phase1 key exchange if certificates are used some packets can be
quite large resulting in fragmentation.  These particular NAT devices
do not handle fragmented UDP packets well and usually drop them.  To
overcome this IKE over TCP, which enables retransmission and better
handling of fragmented packets.

--

Chris Tidwell
Central Region Security Engineer
Check Point Software Technologies(V)(F)

http://www.checkpoint.com

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Friday, March 7, 2003, 7:54:20 AM, you wrote:

z> Hi!
z> Why to use IKE over tcp instead of IKE over UDP?

z> Thanks


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