Linux-ha Heartbeat startup problem

[Rafael Vallejo]

Hello list

I have been dealing with this from a week ago and have no idea of what 
is happening.

I'm experimenting with linux-ha, for that purpose I have 2 Pentium 3 
machines with Centos 4.2, and heartbeat 2.0.4-1 installed from rpms 
downloaded from Ultramonkey, 
http://www.ultramonkey.org/download/heartbeat/, those machines will be 
runing NFS services 10.0.10.3 is the Active and 10.0.10.4 is the pasive, 
I have just one Ehternet card on each and a NULL Modem cable conecting them.

When I try to start heartbeat I got the following

[root at srv3 ha.d]#  service heartbeat start
logd is already running
Starting High-Availability services:
2006/05/12_12:18:08 INFO: IPaddr Resource is stopped
                                                           [FAILED]

*This is the /etc/ha.d/ha.cf file*

serial /dev/ttyS0
baud 19200
logfacility     daemon
keepalive 1
deadtime 10
warntime 5
initdead 120 # depend on your hardware
udpport 694
ping 10.0.10.4
bcast eth0
auto_failback off
node    srv3
node    srv4
respawn hacluster /usr/lib64/heartbeat/ipfail
use_logd yes

*This is the **/etc/ha.d/**haresources file*

srv3.novadevices.local 10.0.10.3 nfs

*And finally this is the /etc/ha.d/authfile*

auth 2
2 crc

Any ideas?

-- 
Rafael