OpenSwan

[pruebas]

Hi list,
I have installed a Red Hat Linux Enterprise v.4. And I uninstalled the ipsec-tools packet to replace it by openswan rpm, but I have the next error in /var/log/secure:

Jul  5 17:52:13 localhost pluto[12670]: "remoto"[1] xxx.xxx.xxx.xxx #1: sent MR3, ISAKMP SA established
Jul  5 17:52:13 localhost pluto[12670]: "remoto"[1] xxx.xxx.xxx.xxx #2: ERROR: netlink_get_spi for esp.0 at 217.125.143.45 failed with errno 22: Invalid argument
Jul  5 17:52:13 localhost pluto[12670]: "remoto"[1] xxx.xxx.xxx.xxx #2: responding to Quick Mode
Jul  5 17:52:13 localhost pluto[12670]: "remoto"[1] xxx.xxx.xxx.xxx #2: ERROR: netlink response for Add SA esp.0 at 217.125.143.45 included errno 22: Invalid argument

I have done the same with another package, freeswan, and I have the same error.
Can any help me, please? Thank you