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On Thu, 6 Aug 2020 11:19:21 -0600
Philip Prindeville via tcpdump-workers
wrote:
> Hi.
>
> I’m trying to debug a Strongswan config and wanted to verify that my
> GRE traffic is being encapsulated properly by IPSec. “Tcpdump” to
> the rescue. Well, almost.
>
> So I was try
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Hi.
I’m trying to debug a Strongswan config and wanted to verify that my GRE
traffic is being encapsulated properly by IPSec. “Tcpdump” to the rescue.
Well, almost.
So I was trying to use “ip xfrm state” to get the SPI and sessions keys, and
then run "tcpdump … -E spi@a
