I want to copy every outgoing packet to others WAN interfaces but my iptables (v1.2.7) has not TEE target support. I wonder if there is another way (maybe using iproute2 or ebtables) to copy every outgoing packet to an selected interface. I prefer other way than getting xtables-addons because im working with a embedded device (an UClinux distribution) and i would prefer avoid new versions of iptables (I dont know if the syntax remains the same among versions), cross-compiling problems or changing Makefiles.
There also is the libpcap-based port-mirroring project originally started for the uClibc-backed OpenWRT. It might compile against your platform as well.
Another possible option is the
In case the "TEE" target is not working, you can install a third party "port mirroring" program.
It's based on libpcap: http://code.google.com/p/port-mirroring/