cisco vpn client 4.6 on fedora core 2 2.6.10-1.9_FC2

[Thaddeus J. Kowalski]

I have fc2 and had 2.6.9-1.11_FC2.  just yum'ed and got 2.6.10-1.9_FC2.
I have a cisco vpn client, version 4.6.  when I compiled it on 2.6.9-1.11
     Making module
     make -C /lib/modules/2.6.9-1.11_FC2/build SUBDIRS=/tmp/vpn modules
     make[1]: Entering directory `/lib/modules/2.6.9-1.11_FC2/build'
       CC [M]  /tmp/vpn/linuxcniapi.o
       CC [M]  /tmp/vpn/frag.o
       CC [M]  /tmp/vpn/IPSecDrvOS_linux.o
       CC [M]  /tmp/vpn/interceptor.o
       LD [M]  /tmp/vpn/cisco_ipsec.o
       Building modules, stage 2.
       MODPOST
       CC      /tmp/vpn/cisco_ipsec.mod.o
       LD [M]  /tmp/vpn/cisco_ipsec.ko
     make[1]: Leaving directory `/lib/modules/2.6.9-1.11_FC2/build'
     Copying module to directory "/lib/modules/2.6.9-1.11_FC2/CiscoVPN".
and ran vpnclient connect myserver
all was fine

when I compile it on 2.6.10-1.9
     Making module
     make -C /lib/modules/2.6.10-1.9_FC2/build SUBDIRS=/tmp/vpn modules
     make[1]: Entering directory `/lib/modules/2.6.10-1.9_FC2/build'
       CC [M]  /tmp/vpn/linuxcniapi.o
       CC [M]  /tmp/vpn/frag.o
       CC [M]  /tmp/vpn/IPSecDrvOS_linux.o
       CC [M]  /tmp/vpn/interceptor.o
     /tmp/vpn/interceptor.c: In function `recv_ip_packet_handler':
     /tmp/vpn/interceptor.c:607: warning: passing arg 1 of
`skb_checksum_help' from incompatible pointer type
     /tmp/vpn/interceptor.c: In function `do_cni_send':
     /tmp/vpn/interceptor.c:732: warning: passing arg 1 of
`skb_checksum_help' from incompatible pointer type
       LD [M]  /tmp/vpn/cisco_ipsec.o
       Building modules, stage 2.
       MODPOST
     Warning: could not find /tmp/vpn/.libdriver.so.cmd for
/tmp/vpn/libdriver.so
       CC      /tmp/vpn/cisco_ipsec.mod.o
       LD [M]  /tmp/vpn/cisco_ipsec.ko
     make[1]: Leaving directory `/lib/modules/2.6.10-1.9_FC2/build'
     Create module directory "/lib/modules/2.6.10-1.9_FC2/CiscoVPN".
     Copying module to directory "/lib/modules/2.6.10-1.9_FC2/CiscoVPN".
I got warning and when I ran vpnclient connect myserver
the system locks and I need to power cycle to get it back

do you have a suggestion for me?  Thanks for your help.
teddy