实验：路由、bonding、team

实验：路由实验

• 路由表构成
  目标网络：网络ID 子网掩码
  接口：到达目标网络，从哪个接口出来，此接口
  网关：gateway，下一个邻近路由器的邻近接口的IP地址，如果目标网络和本路由器直接，网关的地址为接口的IP

• centos6 关闭NetworkManager服务
  chkconfig NetworkManager
  service NetworkManager stop

1 按网络配置IP，并关闭防火墙
  下面所有路由器执行
  iptables  -F 
  下次开机不执行防火墙
  chkconfig iptables off centos6
  systemctl  disable firewalld.service centos7
  2 
  在所有路由器上启用路由功能
  echo 1 >  /proc/sys/net/ipv4/ip_forward
  3 
  添加路由记录
  在R1
  route add -net 172.16.0.0/16 gw 192.168.33.129 dev ens33
  在R2
  route add -net 10.0.0.0/8 gw 192.168.33.235 dev eth0
  cat f2|tr -s " " |cut -d " " -f5|grep -oE '([0-9]{1,3}\.){3}[0-9]{1,3}'

实验：在centos6实现多网卡bonding

1service NetworkManager stop
  2 
  vim ifcfg-bond0 
  DEVICE=bond0
  BONDING_OPTS="mode=3 miimon=100"
  IPADDR=192.168.33.100
  PREFIX=24
  3 
  vim ifcfg-eth0
  DEVICE=eth0
  MASTER=bond0
  SLAVE=yes

  vim ifcfg-eth1
  DEVICE=eth1
  MASTER=bond0
  SLAVE=yes

  4 service network restart
  5 cat /proc/net/bonding/bond0

  6
  删除bond0的配置文件
  修改相关网卡的配置文件
      MASTER=bond0
      SLAVE=yes 
  7
  ifconfig bond0 down
  rmmod bonding

添加bonding接口（逻辑接口）：
     nmcli con add type bond con-name mybond0 ifname mybond0 mode active-backup
  添加从属接口（物理接口）：
     nmcli con add type bond-slave ifname ens7 master mybond0
     nmcli con add type bond-slave ifname ens3 master mybond0
      `注：如无为从属接口提供连接名，则该名称是接口名称加类型构成`
  要启动绑定，则必须首先启动从属接口：
      nmcli con up bond-slave-ens7
      nmcli con up bond-slave-ens3
  现在可使用以下方法启动绑定：
      nmcli con up mybond0

实验：网络组示例：

# nmcli con add type team con-name team0 ifname
   team0 config ‘{"runner": {"name": "loadbalance"}}'
   # nmcli con mod team0 ipv4.addresses
   192.168.1.100/24
   # nmcli con mod team0 ipv4.method manual
   # nmcli con add con-name team0-eth1 type team-
   slave ifname eth1 master team0
   # nmcli con add con-name team0-eth2 type team-
   slave ifname eth2 master team0
   # nmcli con up team0
   # nmcli con up team0-eth1
   # nmcli con up team0-eth2
   # teamdctl team0 state; # nmcli dev dis eth1

实验:创建网络组team

# ip link
# nmcli con add type team con-name team0 ifname team0 config '{"runner": {"name": "activebackup"}}'
# nmcli con mod team0 ipv4.addresses '192.168.0.100/24'
# nmcli con mod team0 ipv4.method manual
# nmcli con add con-name team0-port1 type team-slave ifname eth1 master team0
# nmcli con add con-name team0-port2 type team-slave ifname eth2 master team0
# teamdctl team0 state
# ping -I team0 192.168.0.254
# nmcli dev dis eno1
# teamdctl team0 state
# nmcli con up team0-port1
# nmcli dev dis eno2
# teamdctl team0 state
# nmcli con up team0-port2
# teamdctl team0 state

# /etc/sysconfig/network-scripts/ifcfg-team0
DEVICE=team0
DEVICETYPE=Team
TEAM_CONFIG="{\"runner\": {\"name\": \"broadcast\"}}"
BOOTPROTO=none
IPADDR0=172.25.5.100
PREFIX0=24
NAME=team0
ONBOOT=yes

# /etc/sysconfig/network-scripts/ifcfg-team0-eth1
 DEVICE=eth1
 DEVICETYPE=TeamPort
 TEAM_MASTER=team0
 NAME=team0-eth1
 ONBOOT=yes