hi,
I have setup a bridge on CentOS7.
ms@sun temp]$ sudo brctl show
bridge name bridge id STP enabled interfaces
br0 8000.b88584b608a6 yes eth0
virbr0 8000.5254006d40bb yes virbr0-nic
Here is ifcfg-eth0
::::::::::::::
HWADDR=B8:85:84:B6:08:A6
DEVICE=eth0
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
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="Wired connection 1"
UUID=a079401d-ff63-48ec-b322-8073dbb59eac
ONBOOT=yes
IPADDR=192.168.0.50
PREFIX=24
IPADDR1=192.168.0.51
PREFIX1=24
IPADDR2=192.168.0.52
PREFIX2=24
NETMASK=255.255.255.0
GATEWAY=192.168.0.1
DNS1=192.168.0.1
NM_CONTROLLED=no
BRIDGE=br0
ZONE=public
and ifcfg-br0
::::::::::::::
DEVICE=br0
ONBOOT=yes
TYPE=Bridge
BOOTPROTO=dhcp
STP=on
DELAY=0
NM_CONTROLLED=no
ms@sun temp]$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master br0 state UP group default qlen 1000
link/ether b8:85:84:b6:08:a6 brd ff:ff:ff:ff:ff:ff
3: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether 9c:b6:d0:c0:0e:7b brd ff:ff:ff:ff:ff:ff
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether 52:54:00:6d:40:bb brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
valid_lft forever preferred_lft forever
5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel master virbr0 state DOWN group default qlen 1000
link/ether 52:54:00:6d:40:bb brd ff:ff:ff:ff:ff:ff
6: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether b8:85:84:b6:08:a6 brd ff:ff:ff:ff:ff:ff
inet 192.168.0.22/24 brd 192.168.0.255 scope global dynamic br0
valid_lft 602316sec preferred_lft 602316sec
inet6 fd00:fc:8dad:e182:ba85:84ff:feb6:8a6/64 scope global mngtmpaddr dynamic
valid_lft 534931sec preferred_lft 401074sec
inet6 2607:fea8:d5f:f0b7:ba85:84ff:feb6:8a6/64 scope global mngtmpaddr dynamic
valid_lft 604303sec preferred_lft 172303sec
inet6 fe80::ba85:84ff:feb6:8a6/64 scope link
valid_lft forever preferred_lft forever
[ms@sun temp]$
[ms@sun temp]$ ifconfig -a
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.22 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 fd00:fc:8dad:e182:ba85:84ff:feb6:8a6 prefixlen 64 scopeid 0x0<global>
inet6 fe80::ba85:84ff:feb6:8a6 prefixlen 64 scopeid 0x20<link>
inet6 2607:fea8:d5f:f0b7:ba85:84ff:feb6:8a6 prefixlen 64 scopeid 0x0<global>
ether b8:85:84:b6:08:a6 txqueuelen 1000 (Ethernet)
RX packets 57864 bytes 259997679 (247.9 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 50271 bytes 6144593 (5.8 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether b8:85:84:b6:08:a6 txqueuelen 1000 (Ethernet)
RX packets 202763 bytes 275820726 (263.0 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 51722 bytes 6247953 (5.9 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 19
Bridge works fine. I am able to connect to from CentOS7 IP: 192.168.0.50, after setup bridge I am not able to connect to CentOS from LAN 192.168.0.XX Ip e.g. ssh to 192.168.0.50.
Router: 192.168.0.1, CentOS IP 192.168.0.50, I have stopped NetworkManager and firewalld, using network service.
What am I missing when setup network or bridge? I want my Cent OS server be accessible from LAN e.g. from windows I should be able to http and ssh to Centos?
Please help.
Thanks.
Mo Sihra
eth0 is not reachable from LAN after setup bridge
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- Posts: 3
- Joined: 2019/02/06 18:10:00
Re: eth0 is not reachable from LAN after setup bridge
The ip details that are on eth0 should be transferred to the bridge br0.
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
-
- Posts: 3
- Joined: 2019/02/06 18:10:00
Re: eth0 is not reachable from LAN after setup bridge
Thank you. It worked. Great!!!!!!