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IPSec NAT-T over TCP on IOS Router ?

roland.sonder
Level 1
Level 1

‎05-07-2008 02:41 PM - edited ‎02-21-2020 03:42 PM

Hi there,

Is it possible to force a IOS Router to do IPSec NAT transparency over TCP as this can be done on a VPNC3k, ASA or PIX ?

All I figured so far was that UDP is supported but not TCP.

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JORGE RODRIGUEZ
Level 10
Level 10

‎05-07-2008 03:39 PM

Try this cisco tunnel control procotol cTCP, is possible in IOS to encapsulate ike/esp traffic in tcp..

http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6586/ps6635/ps6659/prod_white_paper0900aecd8061e2b3.html

Rgds

-Jorge

Jorge Rodriguez

roland.sonder
Level 1
Level 1
In response to JORGE RODRIGUEZ

‎05-07-2008 10:48 PM

Hi Jorge,

Many thank's for the fast reply :-))

After a short look at the document, I got the impression that this is exactly what I am looking for.

Roland

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