(CC maintainer of procps as a heads-up) On Monday 21 May 2007 22:36, Frans Pop wrote: > My hercules s/390 emulator no longer receives packets sent from other > boxes to the external IP address it has on the host system. It appears > that iptables prerouting is broken somehow.
Update on this issue (more details in upstream BR). The cause of the change in behavior has been traced to the following upstream commit: 8030f54499925d073a88c09f30d5d844fb1b3190 Somehow this causes default ipv4 settings defined in /etc/sysctl.conf to no longer be applied to eth0. In my /etc/sysctl.conf I have: net.ipv4.conf.default.rp_filter=1 net.ipv4.conf.default.forwarding=1 But after booting with a kernel with that change, these values are no longer applied for eth0: $ cat /proc/sys/net/ipv4/conf/eth0/rp_filter: 0 $ cat /proc/sys/net/ipv4/conf/eth0/forwarding: 0
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