Hi, Ive just this second tried one more thing which has fixed the ping localhost problem. I didnt realize I was killing the packets in my POSTROUTING chain.
However I still cant ping a machine on the internal network even though machines on the internal network can ping the firewall. My routing table is: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 217.35.199.203 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 ppp0 Thanks, Claude ---- Original Message ----- From: "Antony Stone" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, May 30, 2002 8:56 AM Subject: Re: sendto: Operation not permitted > On Friday 31 May 2002 12:48 am, Claudio Mio wrote: > > > Hi > > > > My firewall has been running for sometime. However there have been > > somethings that I could never do. This has not caused me problems until > > now. > > > > The machines is running Mandrake 8.1 and has an internal interface (eth0) > > and an external interface (ppp0). > > > > The problem is I cannot ping machines on the internal lan and I cannot ping > > localhost. I can ping machines on the net ok however. The error I get is: > > sendto: Operation not permitted > > What is your routing table ? > > > > Antony. >