I've succeeded in creating an IPSEC tunnel between 2 Debian Sarge with kernel 2.4.27-speakup, but I don't understand why I can't view interface ipsec0 with command ifconfig -a. I've also tried using command interfaces="ipsec0=eth0" in file ipsec.conf, but nothing changes; only information in syslog is "ipsec_setup: KLIPS ipsec0 on eth1 151.8.x.x". Have you any suggestion?