[Openswan Users] Openswan isntallation

Paul Wouters paul at xelerance.com
Tue Jan 12 10:02:04 EST 2010

On Tue, 12 Jan 2010, Zaeem Sherazi wrote:

> Regarding your question about KLIPS (Kernal Layer IP Security) is
> concerned I am not very much clear that it is required or not but I need
> some NAT traversal. So as per my Google search it seems that KLIPS is
> required.

As explained by others, that is not needed. NETKEY will work fine for you.

> You also wrote that "<The current release does not compile on 2.6.18
> based kernels (rhel/centos)>" Can you please let me know then what
> version of Openswan should I try with My centOS 5.3 (Kernel: 2.6.18-128)?

KLIPS requires a newer kernel. The userland, the only part you need,
compiles independantly of the kernel and will work on all systems that
either have netkey or klips. So some 2.4.x kernels and all 2.6.x kernels.


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