Posted: Mon Dec 29, 2008 23:48 Post subject: Stop mDNSResponder from Broadcasting on WAN
I have just installed the optional mDNSResponder OpenWRT package onto my WRT54G-TM router running dd-wrt.v24-11218_NEWD_mega.bin. I want to ensure that mDNSResponder will not it will not advertise my services upstream to the internet. How do I create a firewal rule (iptables) to block the mDNSResponder process from accesing the vlan1 interface? Also, how do I set these chanes to be stored so they will reload after reboot? Should I save them in the nvram or in a script on the /jffs partiton and call it in rc_startup?
I know that I can disable multicast on the vlan1 interface and it would fix the problem. What is the downside of this? I am not exactly sure if I need Multicast enabled on the WAN interface.