-----Original Message----- From: Alex Samad <a...@samad.com.au> To: debian-user@lists.debian.org Subject: Re: IP Forward Problems Date: Mon, 16 Mar 2009 10:02:28 +1100 Mailer: Mutt/1.5.18 (2008-05-17)
On Fri, Mar 13, 2009 at 12:44:40PM +1100, Alex Samad wrote: > On Thu, Mar 12, 2009 at 10:43:52AM -0000, Gerard Hooton wrote: > > > > > On Wed, Mar 11, 2009 at 01:07:06PM +0000, Gerard Hooton wrote: > > >> Hello, > > [snip] > > > > > > > why do you have 3 interface into the same ip network ? I presume there > > > are all attached to the same ethernet broadcast domain ? > > > > > > that shouldn't be causing the problem though. have you done a tcpdump to > > > see what traffic is being forwarded ? The other question is why do you > > > need to forward ? > > > > > > can you do an ip route please > > > > OK .... > > > > ip route > > 143.239.0.0/16 dev eth0 proto kernel scope link src 143.239.184.13 > > 143.239.0.0/16 dev eth1 proto kernel scope link src 143.239.184.75 > > default via 143.239.1.199 dev eth0 src 143.239.184.12 > > So still the other questions, why do you need to route ie why do you > need forward? Another thing to check is proxy_arp sysctl -a | grep arp | sort | less net.ipv4.conf.all.proxy_arp = 0 net.ipv4.conf.default.arp_accept = 0 net.ipv4.conf.default.arp_announce = 0 net.ipv4.conf.default.arp_filter = 0 net.ipv4.conf.default.arp_ignore = 0 net.ipv4.conf.default.proxy_arp = 0 net.ipv4.conf.eth0.arp_accept = 0 net.ipv4.conf.eth0.arp_announce = 0 net.ipv4.conf.eth0.arp_filter = 0 net.ipv4.conf.eth0.arp_ignore = 0 net.ipv4.conf.eth0.proxy_arp = 0 net.ipv4.conf.lo.arp_accept = 0 net.ipv4.conf.lo.arp_announce = 0 net.ipv4.conf.lo.arp_filter = 0 net.ipv4.conf.lo.arp_ignore = 0 net.ipv4.conf.lo.proxy_arp = 0 net.ipv4.conf.wlan0.arp_accept = 0 net.ipv4.conf.wlan0.arp_announce = 0 net.ipv4.conf.wlan0.arp_filter = 0 net.ipv4.conf.wlan0.arp_ignore = 0 net.ipv4.conf.wlan0.proxy_arp = 0 Results:- error: permission denied on key 'net.ipv4.route.flush' error: permission denied on key 'net.ipv6.route.flush' error: "Invalid argument" reading key "fs.binfmt_misc.register" error: "Invalid argument" reading key "dev.parport.parport0.autoprobe" error: "Invalid argument" reading key "dev.parport.parport0.autoprobe0" error: "Invalid argument" reading key "dev.parport.parport0.autoprobe1" error: "Invalid argument" reading key "dev.parport.parport0.autoprobe2" error: "Invalid argument" reading key "dev.parport.parport0.autoprobe3" dev.parport.default.spintime = 500 dev.parport.default.timeslice = 200 dev.parport.parport0.base-addr = 888 1912 dev.parport.parport0.devices.active = none dev.parport.parport0.devices.lp.timeslice = 200 dev.parport.parport0.dma = 3 dev.parport.parport0.irq = 7 dev.parport.parport0.modes = PCSPP,TRISTATE,COMPAT,EPP,ECP,DMA dev.parport.parport0.spintime = 500 net.ipv4.conf.all.arp_accept = 0 net.ipv4.conf.all.arp_announce = 0 net.ipv4.conf.all.arp_filter = 0 net.ipv4.conf.all.arp_ignore = 0 net.ipv4.conf.all.proxy_arp = 0 net.ipv4.conf.default.arp_accept = 0 net.ipv4.conf.default.arp_announce = 0 net.ipv4.conf.default.arp_filter = 0 net.ipv4.conf.default.arp_ignore = 0 net.ipv4.conf.default.proxy_arp = 0 net.ipv4.conf.eth0.arp_accept = 0 net.ipv4.conf.eth0.arp_announce = 0 net.ipv4.conf.eth0.arp_filter = 0 net.ipv4.conf.eth0.arp_ignore = 0 net.ipv4.conf.eth0.proxy_arp = 0 net.ipv4.conf.eth1.arp_accept = 0 net.ipv4.conf.eth1.arp_announce = 0 net.ipv4.conf.eth1.arp_filter = 0 net.ipv4.conf.eth1.arp_ignore = 0 net.ipv4.conf.eth1.proxy_arp = 0 net.ipv4.conf.lo.arp_accept = 0 net.ipv4.conf.lo.arp_announce = 0 net.ipv4.conf.lo.arp_filter = 0 net.ipv4.conf.lo.arp_ignore = 0 net.ipv4.conf.lo.proxy_arp = 0 (END) //Ger > > > [snip] > > -- > "If you're sick and tired of the politics of cynicism and polls and > principles, come and join this campaign." > > - George W. Bush > 02/16/2000 > Hilton Head, S.C. -- Gerard Hooton. Department of Microelectronic Engineering U.C.C. Butler Building, Enterprise Centre, North Mall. Cork. Tel: +353 21 4904576 Fax: +353 21 4904573 http://www.ue.ucc.ie/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org