A couple tcpdumps could help know where your pings are getting killed. You can run "tcpdump -i eth0 icmp" on your guest, on the gateway, and on the external machine.
A netstat -nr would help know if your routing table is pointing to the wrong destination... Mauro http://mauro.limeiratem.com - registered Linux User: 294521 Scripture is both history, and a love letter from God. 2012/6/7 Mark Pace <[email protected]>: > Wasn't aware of that one. > > misvpn:~ # cat /proc/sys/net/ipv4/conf/all/rp_filter > 1 > > misvpn:~ # echo 0 > /proc/sys/net/ipv4/conf/all/rp_filter > misvpn:~ # cat /proc/sys/net/ipv4/conf/all/rp_filter > 0 > > Stll unable to ping outward. > > On Thu, Jun 7, 2012 at 10:22 AM, Rob van der Heij <[email protected]> wrote: > >> On Thu, Jun 7, 2012 at 4:10 PM, Mark Pace <[email protected]> wrote: >> > Within Guest2 - the router - Yes >> > misvpn:~ # sudo cat /proc/sys/net/ipv4/ip_forward >> > 1 >> > >> >> There's also the conf/<if>/rp_filter that by default not to accept >> traffic on the interface that you would not have sent that way >> >> Rob >> >> ---------------------------------------------------------------------- >> For LINUX-390 subscribe / signoff / archive access instructions, >> send email to [email protected] with the message: INFO LINUX-390 or >> visit >> http://www.marist.edu/htbin/wlvindex?LINUX-390 >> ---------------------------------------------------------------------- >> For more information on Linux on System z, visit >> http://wiki.linuxvm.org/ >> > > > > -- > The postings on this site are my own and don’t necessarily represent > Mainline’s positions or opinions > > Mark D Pace > Senior Systems Engineer > Mainline Information Systems > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
