grsecurity forums

After compiling linux kernel 2.4.21 with grsecurity 2.0-pre5 I can't
load modules ipip and ip_gre. I think errors are associated with
grsecurity but maybe I'm wrong, please help me:

modprobe ip_gre
/lib/modules/2.4.21-grsec/kernel/net/ipv4/ip_gre.o: unresolved symbol ip_randomid
/lib/modules/2.4.21-grsec/kernel/net/ipv4/ip_gre.o: unresolved symbol grsec_enable_randid
/lib/modules/2.4.21-grsec/kernel/net/ipv4/ip_gre.o: insmod /lib/modules/2.4.21-grsec/kernel/net/ipv4/ip_gre.o failed

modprobe ipip
/lib/modules/2.4.21-grsec/kernel/net/ipv4/ipip.o: unresolved symbol ip_randomid
/lib/modules/2.4.21-grsec/kernel/net/ipv4/ipip.o: unresolved symbol grsec_enable_randid
/lib/modules/2.4.21-grsec/kernel/net/ipv4/ipip.o: insmod /lib/modules/2.4.21-grsec/kernel/net/ipv4/ipip.o failed
/lib/modules/2.4.21-grsec/kernel/net/ipv4/ipip.o: insmod ipip failed