no Sascha, it was not the problem with protocol. And yes, i added -t nat to the rule, it was a typing error that i missed it in the post. for DNAT, I reckon, it is not necessary to add protocol, unless port number is specified. The problem was with strtoull function, I changed it to strtoul and it works fine. thanks ----- Original Message ----- From: "Sascha Reissner" <sascha.reissner@xxxxxxxxxxx> To: "Salim" <salim.si@xxxxxxxxxxxx> Cc: <netfilter@xxxxxxxxxxxxxxxxxxx> Sent: Wednesday, September 07, 2005 4:43 PM Subject: Re: iptables: can't set any ip address in rules > Argh, i mean please add a protocol to the rule, and add the nat table to > the rule.. you always use -t but you do not specify the nat table.. in > your rules "-t" should be replaced with "-t nat" > > regards, > sascha > > Salim wrote: > > this issue has been solved. seems like 'unsigned long long' doesn't work on > > my system. changed 'strtoull' to 'strtoul'. Now it looks okay. > > thanks for all who have spent time on my question. > > > > ----- Original Message ----- > > From: "Salim" <salim.si@xxxxxxxxxxxx> > > To: <netfilter@xxxxxxxxxxxxxxxxxxx> > > Sent: Monday, September 05, 2005 2:01 PM > > Subject: iptables: can't set any ip address in rules > > > > > > Hello all, > > I am not able to set any rule that contsin ip address in the iptables. > > For example I give this command > > > > > >>iptables -t -A PREROUTING -d 1.1.1.1 -j DNAT --to-destination 2.2.2.2 > > > > > > then, I issue the command >iptables -t nat -L. > > > > the result is > > > > Chain POSTROUTING (policy ACCEPT) > > target DNAT > > prot all > > opt -- > > source anywhere > > destination 0.0.0.0 to:0.0.0.0 > > > > > > I gave the command with verbose > > > >>iptables -v -t -A PREROUTING -d 1.1.1.1 -j DNAT --to-destination 2.2.2.2 > > > > > > it showed > > DNAT all opt -- in * out * 0.0.0.0/0 -> 0.0.0.0 to:0.0.0.0 > > > > > > for any command which has an ipaddress, the ip address always is always > > takes as 0.0.0.0 > > > > I am using Redhat Linux 2.4.25 > > iptables v1.3.3 > > MIPS embedded system. > > > > I am confused. Any help will be greatly appreciated. > > > > regards > > Salim > > > > > > >