Bridge NF call ip6tables is an unknown key exception handling

System ：CentOS 6.5

Problem description ： As follows: /etc/sysctl.conf After adding at the end of the file .

fs.aio-max-nr = 1048576

fs.file-max = 6815744

kernel.shmall = 2097152

kernel.shmmax = 8181829631

kernel.shmmni = 4096

kernel.sem = 250 32000 100 128

net.ipv4.ip_local_port_range = 9000 65500

net.core.rmem_default = 262144

net.core.rmem_max = 4194304

net.core.wmem_default = 262144

net.core.wmem_max = 1048576

net.ipv4.conf.eth0.rp_filter = 1

perform /sbin/sysctl -p, The following exception occurred ：

[[email protected] ~]# /sbin/sysctl -p

net.ipv4.ip_forward = 0

net.ipv4.conf.default.rp_filter = 1

net.ipv4.conf.default.accept_source_route = 0

kernel.sysrq = 0

kernel.core_uses_pid = 1

net.ipv4.tcp_syncookies = 1

error:"net.bridge.bridge-nf-call-ip6tables" is an unknown key

error:"net.bridge.bridge-nf-call-iptables" is an unknown key

error:"net.bridge.bridge-nf-call-arptables" is an unknown key

kernel.msgmnb = 65536

kernel.msgmax = 65536

kernel.shmmax = 68719476736

kernel.shmall = 4294967296

fs.aio-max-nr = 1048576

fs.file-max = 6815744

kernel.shmall = 2097152

kernel.shmmax = 8181829631

kernel.shmmni = 4096

kernel.sem = 250 32000 100 128

net.ipv4.ip_local_port_range = 9000 65500

net.core.rmem_default = 262144

net.core.rmem_max = 4194304

net.core.wmem_default = 262144

net.core.wmem_max = 1048576

net.ipv4.conf.eth0.rp_filter= 1

Abnormal reason ： Highlighted 3 Errors depend on bridge modular , If the module is not loaded, the above error will appear .

Solution : load bridge modular

[[email protected] ~]# modprobe bridge

[[email protected] ~]# lsmod|grep bridge

bridge 83177 0

stp 2218 1 bridge

llc 5546 2 bridge,stp

Re execution /sbin/sysctl -p, No abnormal occurrence .

[[email protected] ~]# /sbin/sysctl -p

net.ipv4.ip_forward = 0

net.ipv4.conf.default.rp_filter = 1

net.ipv4.conf.default.accept_source_route = 0

kernel.sysrq = 0

kernel.core_uses_pid = 1

net.ipv4.tcp_syncookies = 1

net.bridge.bridge-nf-call-ip6tables = 0

net.bridge.bridge-nf-call-iptables = 0

net.bridge.bridge-nf-call-arptables = 0

kernel.msgmnb = 65536

kernel.msgmax = 65536

kernel.shmmax = 68719476736

kernel.shmall = 4294967296

fs.aio-max-nr = 1048576

fs.file-max = 6815744

kernel.shmall = 2097152

kernel.shmmax = 8181829631

kernel.shmmni = 4096

kernel.sem = 250 32000 100 128

net.ipv4.ip_local_port_range = 9000 65500

net.core.rmem_default = 262144

net.core.rmem_max = 4194304

net.core.wmem_default = 262144

net.core.wmem_max = 1048576

net.ipv4.conf.eth0.rp_filter= 1