SuSEfirewall2-custom rules not working?

I am using SuSE 9.1 and SuSEfirewall2. I am trying to block port 1433 and
after Googling for examples, I have put the following rule into my
SuSEfirewall2-custom (IP address disguised):

fw_custom_before_denyall() { # could also be named "after_forwardmasq()"
    # these are the rules to be loaded after IP forwarding and masquerading
    # but before ...[snip]...
 
        iptables -A INPUT -i eth0 -d 82.70.xxx.xxx -p tcp --dport 1433 -j DROP

    true
}

But looking at the logs, I still see packets being accepted (3 entries
below). Can someone please explain?

Jun 25 17:23:22 mailhost kernel: SuSE-FW-ACCEPT IN=eth0 OUT=
MAC=00:02:44:16:17:0d:00:09:5b:00:6f:8c:08:00 SRC=82.67.164.238
DST=82.70.xxx.xxx LEN=48 TOS=0x00 PREC=0x00 TTL=120 ID=14310 DF PROTO=TCP
SPT=1233 DPT=1433 WINDOW=16384 RES=0x00 SYN URGP=0 OPT (020405B401010402)
 
Jun 25 17:23:23 mailhost kernel: SuSE-FW-ACCEPT IN=eth0 OUT=
MAC=00:02:44:16:17:0d:00:09:5b:00:6f:8c:08:00 SRC=82.67.164.238
DST=82.70.xxx.xxx LEN=48 TOS=0x00 PREC=0x00 TTL=120 ID=14356 DF PROTO=TCP
SPT=1233 DPT=1433 WINDOW=16384 RES=0x00 SYN URGP=0 OPT (020405B401010402)

Jun 25 17:23:24 mailhost kernel: SuSE-FW-ACCEPT IN=eth0 OUT=
MAC=00:02:44:16:17:0d:00:09:5b:00:6f:8c:08:00 SRC=82.67.164.238
DST=82.70.xxx.xxx LEN=48 TOS=0x00 PREC=0x00 TTL=120 ID=14406 DF PROTO=TCP
SPT=1233 DPT=1433 WINDOW=16384 RES=0x00 SYN URGP=0 OPT (020405B401010402)

Thanks.
Received on Thu Sep 29 19:56:50 2005