http://bugzilla.opensuse.org/show_bug.cgi?id=977179 Bug ID: 977179 Summary: Wicked Routing/ Forwarding stops working when interface goes down Classification: openSUSE Product: openSUSE Distribution Version: Leap 42.1 Hardware: x86-64 OS: openSUSE 42.1 Status: NEW Severity: Normal Priority: P5 - None Component: Network Assignee: bnc-team-screening@forge.provo.novell.com Reporter: harm.gerding@hstone.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36 Build Identifier: When an interface goes down/ or unplugged or the device which it is connected to goes down then the system stops routing traffic between interfaces On Leap42.1 it has occurred when we add a vlan/ or change network settings I am also able to simulate it with an wicked ifdown eth1 wicked ifup eth1 It does not affect any routing that takes place on the box, but only if the traffic is being forwarded though the box ie from a system connected to eth1 to a system connected to eth2 it will fail to forward traffic, ie system1 - switch1 - [eth1 on machine to eth2 on machine] - switch2 - system2 Restarting or removing firewall rules does not fix it. I have found I can get the forwarding to work again by turning forwarding off and then back on. (The forwarding will show that it is still on before I turn it off) ie cat /proc/sys/net/ipv4/ip_forward returns a "1" echo "0" > /proc/sys/net/ipv4/ip_forward cat /proc/sys/net/ipv4/ip_forward returns a "0" echo "1" > /proc/sys/net/ipv4/ip_forward cat /proc/sys/net/ipv4/ip_forward returns a "1" Forwarding works again. (Everything seems back to normal) Reproducible: Always Steps to Reproduce: 1. wicked ifdown eth1 2. wicked ifup eth1 3. (Forwarding stops working - between to outside machines with the affected machine in the middle) Actual Results: ping from outside machine stops working Expected Results: ping should stop and start again when the interface comes backup If you reboot the machine all of the routing comes backup if you stop and start the forwarding it comes backup again -- You are receiving this mail because: You are on the CC list for the bug.