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Re: debian [testing/etch] redirected broadcasts not working



Hi Manfred,

> I am struggling with ipfilters to redirect broadcast from the internet into
> my LAN, which I need for Wake On LAN(WAN). I have just moved from NetBSD to
> Debian and have set it up to be a router, which does well. I am new to
> ipfilters, but I got all of my nat-based redirects of ports running, except
> this one:
> 
> iptables -t nat -A PREROUTING -i $EXTIF -p udp --dport 8888 -j DNAT --to
> 192.168.26.255
> 
> This is syntactically accepted by ipfilters, not there are no redirected
> packges in the LAN, which I track with tcpdump. The packages reach my public
> interface, but not more. In NetBSD, I had to set the kernel variable
> "net.inet.ip.directed-broadcast" to allow the redirected broadcast. After
> long serches, I discovered "net.ipv4.ip_echo_ignore_broadcasts" for Debian
> from a posting. But if I try to set this variable, I get only "unknown key"
> [I use "sysctl -w ...].
> 
> Is this a limitation to the testing version, or am I completely wrong with
> my attempt?

I don't know the answer to this offhand, but you will get more help if
you resend the question to debian-user@lists.debian.org instead of
debian-testing. The debian-testing list is only for testing upgrades to
the forthcoming stable release, not for general user support of it.

best regards,

-- 
Kevin B. McCarty <kmccarty@princeton.edu>   Physics Department
WWW: http://www.princeton.edu/~kmccarty/    Princeton University
GPG: public key ID 4F83C751                 Princeton, NJ 08544



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