[Dnsmasq-discuss] iptables configuration drops packets

Simon Kelley simon at thekelleys.org.uk
Fri May 16 19:48:37 BST 2008

Adam Hardy wrote:
> Hi,
> I set up iptables myself today after using an obtusely written script 
> for some time.
> I am trying to work out whether everything is in order and I am seeing 
> logs from iptables saying that it is dropping packets from the machine 
> every 12 minutes, which doesn't make sense - here's a line from the log:
> May 16 19:21:10 isengard kernel: dropped from OUTPUT IN= OUT=eth1 
> SRC= DST= LEN=237 TOS=0x00 PREC=0x00 TTL=64 ID=0 
> DF PROTO=UDP SPT=138 DPT=138 LEN=217
Are you running Samba?

thekelleys:~# grep 138 /etc/services
netbios-dgm     138/tcp                # NETBIOS Datagram Service
netbios-dgm     138/udp



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