ddclient is definitely not updating my dynamic IP address

[Barry Yu]

After 5 days with the ddclient installed and configured, today I noticed 
that my internet IP address has changed, but the ddclient is not 
updating this change into my account in dyndns.org.
The rpm package I downloaded is from dyndns.org.
I also tried yum install ddclient from freshrpms.
But both packages installation results are the same: Getting this 
message from the mail from ddclient to root : " Caught SIGTERM ;  exiting ".
My fc2 is behide a Linksys router BEFW11s4 ver.2 - Never updated bios.
May be I really don't know how to configured the /etc/ddclient.conf  
correctly, below is the content of it and see if any one can help ;
######################################################################
##
## Define default global variables with lines like:
##     var=value [, var=value]*
## These values will be used for each following host unless overridden
## with a local variable definition.
##
## Define local variables for one or more hosts with:
##     var=value [, var=value]* host.and.domain[,host2.and.domain...]
##
## Lines can be continued on the following line by ending the line
## with a \
##
######################################################################
daemon=300                # check every 300 seconds
syslog=yes                # log update msgs to syslog
mail=root                # mail all msgs to root
mail-failure=root            # mail failed update msgs to root
pid=/var/run/ddclient.pid        # record PID in file.
#
#use=watchguard-soho,        fw=192.168.111.1:80    # via Watchguard's 
SOHO FW
#use=netopia-r910,           fw=192.168.111.1:80    # via Netopia R910 FW
#use=smc-barricade,          fw=192.168.123.254:80    # via SMC's 
Barricade FW
#use=netgear-rt3xx,          fw=192.168.0.1:80        # via Netgear's 
internet FW
use=linksys,                fw=192.168.1.1:80        # via Linksys's 
internet FW
#use=maxgate-ugate3x00,      fw=192.168.0.1:80        # via MaxGate's 
UGATE-3x00  FW
#use=elsa-lancom-dsl10,      fw=10.0.0.254:80        # via ELSA LanCom 
DSL/10 DSL Router
#use=elsa-lancom-dsl10-ch01, fw=10.0.0.254:80        # via ELSA LanCom 
DSL/10 DSL Router
#use=elsa-lancom-dsl10-ch02, fw=10.0.0.254:80        # via ELSA LanCom 
DSL/10 DSL Router
#use=alcatel-stp,            fw=10.0.0.138:80           # via Alcatel 
Speed Touch Pro
#use=xsense-aero,            fw=192.168.1.1:80          # via Xsense 
Aero Router
#use=allnet-1298,            fw=192.168.1.1:80          # via AllNet 
1298 DSL Router
#use=3com-oc-remote812,         fw=192.168.0.254:80    # via 3com 
OfficeConnect Remote 812
#use=e-tech,                 fw=192.168.1.1:80          # via E-tech Router
#use=cayman-3220h,           fw=192.168.0.1:1080        # via Cayman 
3220-H DSL Router
#
#fw-login=admin,             fw-password=XXXXXX        # FW login and 
password
#
## To obtain an IP address from FW status page (using fw-login, fw-password)
#use=fw, fw=192.168.1.254/status.htm, fw-skip='IP Address' # found after 
IP Address
#
## To obtain an IP address from Web status page (using the proxy if defined)
#use=web, web=checkip.dyndns.org/, web-skip='IP Address' # found after 
IP Address
#
#use=ip,                     ip=127.0.0.1    # via static IP's
#use=if,                     if=eth0        # via interfaces
#use=web                    # via web
#
protocol=dyndns2                # default protocol
#proxy=fasthttp.sympatico.ca:80            # default proxy
server=members.dyndns.org            # default server
#server=members.dyndns.org:8245            # default server (bypassing 
proxies)

login=MyAccountName                # default login
password=MyPassword                    # default password
#mx=mx.for.your.host                # default MX
#backupmx=yes|no                # host is primary MX?
#wildcard=yes|no                # add wildcard CNAME?

##
## dyndns.org dynamic addresses
##
## (supports variables: wildcard,mx,backupmx)
##
server=members.dyndns.org,        \
protocol=dyndns2            \
MyAccountName.dyndns.org

##
## dyndns.org static addresses
##
## (supports variables: wildcard,mx,backupmx)
##
# static=yes,                \
# server=members.dyndns.org,        \
# protocol=dyndns2            \
# your-static-host.dyndns.org

##
##
## dyndns.org custom addresses
##
## (supports variables: wildcard,mx,backupmx)
##
# custom=yes,                \
# server=members.dyndns.org,        \
# protocol=dyndns2            \
# your-domain.top-level,your-other-domain.top-level

##
## ZoneEdit (zoneedit.com)
##
# server=www.zoneedit.com,         \
# protocol=zoneedit1,            \
# login=your-zoneedit-login,          \
# password=your-zoneedit-password    \
# your.any.domain,your-2nd.any.dom

##
## EasyDNS (easydns.com)
##
# server=members.easydns.com,         \
# protocol=easydns,            \
# login=your-easydns-login,          \
# password=your-easydns-password    \
# your.any.domain,your-2nd.any.domain

##
## Hammernode (hn.org) dynamic addresses
##
# server=dup.hn.org,                 \
# protocol=hammernode1,             \
# login=your-hn-login,               \
# password=your-hn-password          \
# your-hn-host.hn.org,your-2nd-hn-host.hn.org

##
## dslreports.com dynamic-host monitoring
##
# server=members.dslreports.com        \
# protocol=dslreports1,            \
# login=dslreports-login,        \
# password=dslreports-password        \
# dslreports-unique-id

##
## OrgDNS.org account-configuration
##
#use=web, web=members.orgdns.org/nic/ip
# server=www.orgdns.org         \
# protocol=dyndns2             \
# login=yourLoginName             \
# password=yourPasswort         \
# yourSubdomain.orgdns.org

##
## dnspark.com
## (supports variables: mx, mxpri)
##
# use=web, web=ipdetect.dnspark.com, web-skip='Current Address:'
# protocol=dnspark,            \
# server=www.dnspark.com,        \
# your-host.dnspark.com