I just installed openswan on my redhat 9 using rpm. The install only had one warning:

warning: openswan-2.4.4-1.i386.rpm: V3 RSA/MD5 signature: NOKEY, key ID b5cc27e1

Following the instructions to test the install I entered:

service ipsec start

That returned:

bash: service: command not found

I went to service configuration to check if ipsec was active. It showed stopped so I selected to start the service. That brought me the message:

ipsec failed. The error was: ipsec_setup: Starting Openswan IPsec 2.4.4...
ipsec_setup: modprobe: Can't locate module ipsec
ipsec_setup: modprobe: Can't locate module af_key
ipsec_setup: modprobe: Can't locate module ipsec
ipsec_setup: kernel appears to lack IPsec support (neither CONFIG_KLIPS or CONFIG_NET_KEY are set)

How do I verify whether these modules are actually installed and what do I do from here?

Thanks

Looks like you need to recompile your kernel. CONFIG_NET_KEY is found under "Networking --> Networking Options --> PF_KEY sockets

I couldn't find CONFIG_KLIPS ion my linux-2.6.13 source. Maybe you can get by with just CONFIG_NET_KEY.

Also, I am not saying this is the solution to your problem, perhaps there is still more for you to do, but your error message makes it clear that ipsec needs this option in the kernel to work