iptables syntax help - No chain/target/match by that name [newbie]

[Noah]

redhat-8.0 
iptrables 1.2.8


hi there,

trying to get iptables runnign properly and taking some config advice from the
Haxial website but Having a bit of difficulty getitng iptables working properly:

this is a snip from the config file:

--- snip ---

PORTFWIP="192.168.1.69"

$IPTABLES -A PREROUTING -i $EXTIF -p tcp --dport 10800 -j DNAT
--to-destination $PORTFWIP:10800
$IPTABLES -A PREROUTING -i $EXTIF -p udp --dport 10800 -j DNAT
--to-destination $PORTFWIP:10800
$IPTABLES -A PREROUTING -i $EXTIF -p tcp --dport 10700 -j DNAT
--to-destination $PORTFWIP:10700
$IPTABLES -A PREROUTING -i $EXTIF -p tcp --dport 10600 -j DNAT
--to-destination $PORTFWIP:10600

-- snip ----

here are the errors

--- snip ---


   Enabling forwarding..
   Clearing any existing rules and setting default policy..
   FWD: Allow all connections OUT and only existing and related ones IN
   Enabling SNAT (MASQUERADE) functionality on eth0
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name

Done.

--- snip ---

the forwarding of port 10600, 10700, 10800 to 192.168.1.69 is not happening -
what am I doing wrong?


--- snip ---

# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy DROP)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere           state
RELATED,ESTABLISHED
ACCEPT     all  --  anywhere             anywhere
LOG        all  --  anywhere             anywhere           LOG level warning

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

---- snip ---


- Noah