dsniff/ettercap do not work without NAT iptables
 

Hi fellow security "experimenter".

I recently bought a n810 with the hope of using it for security testing. I have kismet, ettercap and dsniff installed and working. However, they cannot do anything (at least for dsniff and ettercap) until the kernel supports a way to reroute the traffic to these tools. It can be ipchains or iptables.
Iptables is available on os2008 but is missing the NAT tables.
I've seen multiple post on these forum saying that these tools were working, but I think that what was meant is that they could be launched but not really do anything useful.

Did I miss something ? is there an easy way to get the NAT tables modules for os2008 without recompiling a kernel ?

Thanks for any help.

JC

Re: dsniff/ettercap do not work without NAT iptables
 

Hi JC,
Did u solve the NAT problem???If yes please gimme some pointers since even I'm stuck with this NAT problem..

Re: dsniff/ettercap do not work without NAT iptables
 

Any updates how get ipatables to work?

Re: dsniff/ettercap do not work without NAT iptables
 

See here:

http://www.internettablettalk.com/fo...15&postcount=5

Re: dsniff/ettercap do not work without NAT iptables
 

I'm pretty new kernel. What should I do with the netfiler-diablo.tgz file?

Re: dsniff/ettercap do not work without NAT iptables
 

Open xterm (or ssh into the device) make sure you have root privileges (sudo gainroot is an option), and run

tar -C /lib/ -xzf netfilter-diablo.tgz

Then insmod all the necessary modules, and iptables will work.

Re: dsniff/ettercap do not work without NAT iptables
 

After the tar part, what do I have to do with insmod?

Really, this is my first time to deal with it.

Re: dsniff/ettercap do not work without NAT iptables
 

Run the commands:

insmod /lib/modules/2.6.21-omap1/net/netfilter/nf_conntrack.ko
insmod /lib/modules/2.6.21-omap1/net/ipv4/netfilter/nf_conntrack_ipv4.ko
insmod /lib/modules/2.6.21-omap1/net/ipv4/netfilter/nf_nat.ko
insmod /lib/modules/2.6.21-omap1/net/ipv4/netfilter/iptable_nat.ko
insmod /lib/modules/2.6.21-omap1/net/ipv4/netfilter/iptable_raw.ko
insmod /lib/modules/2.6.21-omap1/net/ipv4/netfilter/ipt_REDIRECT.ko
insmod /lib/modules/2.6.21-omap1/net/ipv4/netfilter/ipt_SAME.ko
insmod /lib/modules/2.6.21-omap1/net/ipv4/netfilter/ipt_MASQUERADE.ko
insmod /lib/modules/2.6.21-omap1/net/ipv4/netfilter/ipt_NETMAP.ko



Please note that this enables NAT, but I never tried any of kismet, ettercap or dsniff, so I don't know if that is enough to make them work.

Re: dsniff/ettercap do not work without NAT iptables
 

already tried insmod but still no success to run the following command:

iptables -t nat -I POSTROUTING -o bnep0 -j MASQUERADE

iptables: No chain/target/mach by that name

any ideal?

Re: dsniff/ettercap do not work without NAT iptables
 

Are you sure the module iptables_nat is inserted properly (check with lsmod)?

What is the result of

iptables -t nat -L