centos - vlan 설정

linux

centos - vlan 설정

sysman 2020. 12. 31. 20:18

vmware workstation-> vm세팅-> network-> segment 만들어서 할당

서버1에서

태깅을 위해 모듈 등록
#lsmod | grep 8021q
#modinfo 8021q
#modprobe 8021q
#lsmode | grep 8021q

#vi ifcfg-ens37
[root@server1 network-scripts]# cat ifcfg-ens37
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens37
UUID=
DEVICE=ens37
ONBOOT=yes
IPV6_PRIVACY=no

#vi ifcfg-ens37.5
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens37.5
UUID=
DEVICE=ens37.5
ONBOOT=yes
IPADDR=192.168.37.5
NETMASK=255.255.255.0
VLAN=yes
IPV6_PRIVACY=no
NETWORK=192.168.37.0
[root@server1 network-scripts]#

#vi ifcfg-ens37.10
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens37.5
UUID=
DEVICE=ens37.5
ONBOOT=yes
IPADDR=192.168.37.5
NETMASK=255.255.255.0
VLAN=yes
IPV6_PRIVACY=no
NETWORK=192.168.37.0

#reboot

#ip a
3: ens37: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:32:72:72 brd ff:ff:ff:ff:ff:ff
4: ens37.5@ens37: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 00:0c:29:32:72:72 brd ff:ff:ff:ff:ff:ff
    inet 192.168.37.5/24 brd 192.168.37.255 scope global noprefixroute ens37.5
       valid_lft forever preferred_lft forever
    inet6 fe80::a9d3:6f00:b128:fd87/64 scope link noprefixroute
       valid_lft forever preferred_lft forever
5: ens37.10@ens37: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 00:0c:29:32:72:72 brd ff:ff:ff:ff:ff:ff
    inet 192.168.100.1/24 brd 192.168.100.255 scope global noprefixroute ens37.10

vlan 생성확인
[root@server1 network-scripts]# cat /proc/net/vlan/ens37.5
ens37.5  VID: 5  REORDER_HDR: 1  dev->priv_flags: 1021
         total frames received            0
          total bytes received            0
      Broadcast/Multicast Rcvd            0

      total frames transmitted           13
       total bytes transmitted          938
Device: ens37
INGRESS priority mappings: 0:0  1:0  2:0  3:0  4:0  5:0  6:0 7:0
EGRESS priority mappings:
[root@server1 network-scripts]# cat /proc/net/vlan/ens37.10
ens37.10  VID: 10        REORDER_HDR: 1  dev->priv_flags: 1021
         total frames received            0
          total bytes received            0
      Broadcast/Multicast Rcvd            0

      total frames transmitted           13
       total bytes transmitted          938
Device: ens37
INGRESS priority mappings: 0:0  1:0  2:0  3:0  4:0  5:0  6:0 7:0
EGRESS priority mappings:
[root@server1 network-scripts]#

===================================

서버2에서
태깅을 위해 모듈 등록
#lsmod | grep 8021q
#modinfo 8021q
#modprobe 8021q
#lsmode | grep 8021q

#vi ifcfg-ens39
TYPE=Ethernet
BOOTPROTO=none
IPV4_FAILURE_FATAL=no
IPV6INIT=no
IPV6_AUTOCONF=no
IPV6_DEFROUTE=no
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens37
DEVICE=ens37
ONBOOT=yes
IPV6_PRIVACY=no

#vi ifcfg-ens39.5
BOOTPROTO=none
IPV6INIT=no
IPV6_AUTOCONF=no
IPV6_DEFROUTE=no
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens39.5
DEVICE=ens39.5
ONBOOT=yes
IPADDR=192.168.37.6
NETMASK=255.255.255.0
IPV6_PRIVACY=no
VLAN=yes
NETWORK=192.168.37.0

#vi ifcfg-ens39.10
BOOTPROTO=none
IPV6INIT=no
IPV6_AUTOCONF=no
IPV6_DEFROUTE=no
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens39.10
DEVICE=ens39.10
ONBOOT=yes
IPADDR=192.168.100.2
NETMASK=255.255.255.0
IPV6_PRIVACY=no
VLAN=yes
NETWORK=192.168.100.0

#reboot

#ip a
3: ens39: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:91:46:7c brd ff:ff:ff:ff:ff:ff
    inet6 fe80::7001:8dc9:3973:e63c/64 scope link noprefixroute
       valid_lft forever preferred_lft forever
4: ens39.5@ens39: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 00:0c:29:91:46:7c brd ff:ff:ff:ff:ff:ff
    inet 192.168.37.6/24 brd 192.168.37.255 scope global noprefixroute ens39.5
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe91:467c/64 scope link
       valid_lft forever preferred_lft forever
5: ens39.10@ens39: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 00:0c:29:91:46:7c brd ff:ff:ff:ff:ff:ff
    inet 192.168.100.2/24 brd 192.168.100.255 scope global noprefixroute ens39.10

[root@server2 network-scripts]# cat /proc/net/vlan/ens39.5
ens39.5  VID: 5  REORDER_HDR: 1  dev->priv_flags: 1021
         total frames received            3
          total bytes received          138
      Broadcast/Multicast Rcvd            0

      total frames transmitted           16
       total bytes transmitted         1132
Device: ens39
INGRESS priority mappings: 0:0  1:0  2:0  3:0  4:0  5:0  6:0 7:0
EGRESS priority mappings:
[root@server2 network-scripts]# cat /proc/net/vlan/ens39.10
ens39.10  VID: 10        REORDER_HDR: 1  dev->priv_flags: 1021
         total frames received            3
          total bytes received          138
      Broadcast/Multicast Rcvd            0

      total frames transmitted           16
       total bytes transmitted         1132
Device: ens39
INGRESS priority mappings: 0:0  1:0  2:0  3:0  4:0  5:0  6:0 7:0
EGRESS priority mappings:
[root@server2 network-scripts]#

==================================

vconfig 이용 방법
# vconfig add ens37 20
# cat /proc/net/vlan/config  //vlan 생성한것 확인

#ifconfig ens37.20 192.168.20.1 netmask 255.255.255.0 up
#vconfig rem ens37.20   //삭제

==============================
ip link 이용 방법

#ip link add link ens37 name ens37.30 type vlan id 30
#ip link show ens37.30
# ip link delete eth37.30   //삭제
#ip a

net711.tistory.com/entry/Linux-Vlan-%ED%95%A0%EB%8B%B9%ED%95%98%EC%97%AC-tag%EB%A1%9C-interface-%EA%B5%AC%EC%84%B1

[Network] Vlan 할당하여 tag로 interface 구성

리눅스에서 vlan을 tag(태깅)해서 사용하는 방법 우선 vlan 태깅을 위해서는 관련 모듈이 필요하다. 기본적으로 OS에 있지만 혹시 모르니 확인해주도록 한다. # modinfo 8021q # lsmod | grep 8021q 만약 모듈

net711.tistory.com

www.redhat.com/sysadmin/vlans-configuration

How to configure a VLAN in Linux

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www.redhat.com

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