When 2-network/br0 executed, program will hang up fo a while and then go rebooting. The cause is iptables need time to take effect, echo 1 to /proc/sys/net/ipv4/ip_forward to make it taking effect immediately.
Logs(openeuler 20.03): [ 161.565451] + 2-network/iptables [ 161.565453] [ 161.568088] ++ ip route get 1.2.3.4 [ 161.568090] ... [ 168.107379] LKP: rebooting
Signed-off-by: Xu Xijian xuxijian@huawei.com --- sparrow/2-network/iptables | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/sparrow/2-network/iptables b/sparrow/2-network/iptables index 092c4ca..0bf1235 100755 --- a/sparrow/2-network/iptables +++ b/sparrow/2-network/iptables @@ -11,6 +11,8 @@ BR0_SUBNET=172.18.0.0/16 iptables -I FORWARD 1 -j ACCEPT iptables -t nat -A POSTROUTING -o "$PUB_IFACE" -s $BR0_SUBNET -j MASQUERADE iptables -t nat -A POSTROUTING -o $BR0_IFACE -d $BR0_SUBNET -j MASQUERADE +# To make upon rules taking effect immediately +echo 1 > /proc/sys/net/ipv4/ip_forward
systemctl status firewalld | grep -q "running" && {