Hey man!!!! wake up…. last friday i was struggled to change the ip address of my collegue’s lab ESX server service console. That struggle leads me to this post. thanks Anil…..
To check the IP address along with the detailed network cards assigned to the esx server:
Ifconfig -a
Output appears like this
========================================================================
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:9365 errors:0 dropped:0 overruns:0 frame:0
TX packets:9365 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:8127714 (7.7 MiB) TX bytes:8127714 (7.7 MiB)
vmnic0 Link encap:Ethernet HWaddr 00:0C:29:85:0D:76
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:100772 errors:0 dropped:0 overruns:0 frame:0
TX packets:5103 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:35475848 (33.8 MiB) TX bytes:402120 (392.6 KiB)
Interrupt:145
vmnic1 Link encap:Ethernet HWaddr 00:0C:29:85:0D:80
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:105895 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:35894203 (34.2 MiB) TX bytes:0 (0.0 b)
Interrupt:129
vmnic2 Link encap:Ethernet HWaddr 00:0C:29:85:0D:8A
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:105908 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:35895750 (34.2 MiB) TX bytes:0 (0.0 b)
Interrupt:137
vmnic3 Link encap:Ethernet HWaddr 00:0C:29:85:0D:94
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:105690 errors:0 dropped:0 overruns:0 frame:0
TX packets:228 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:35883279 (34.2 MiB) TX bytes:13680 (13.3 KiB)
Interrupt:145
vswif0 Link encap:Ethernet HWaddr 00:50:56:4D:69:D1
inet addr:192.168.0.75 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:14893 errors:0 dropped:0 overruns:0 frame:0
TX packets:2575 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:966513 (943.8 KiB) TX bytes:230028 (224.6 KiB)
vswif1 Link encap:Ethernet HWaddr 00:50:56:4F:45:B1
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:11042 errors:0 dropped:0 overruns:0 frame:0
TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:717158 (700.3 KiB) TX bytes:1260 (1.2 KiB)
=========================================================================
You can use “ip addr” command also to view the ip information
=========================================================================
[root@ESXTEST1 etc]# ip addr
1: lo: mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
2: vmnic0: mtu 1500 qdisc noop qlen 1000
link/ether 00:0c:29:85:0d:76 brd ff:ff:ff:ff:ff:ff
3: vmnic1: mtu 1500 qdisc noop qlen 1000
link/ether 00:0c:29:85:0d:80 brd ff:ff:ff:ff:ff:ff
4: vmnic2: mtu 1500 qdisc noop qlen 1000
link/ether 00:0c:29:85:0d:8a brd ff:ff:ff:ff:ff:ff
5: vmnic3: mtu 1500 qdisc noop qlen 1000
link/ether 00:0c:29:85:0d:94 brd ff:ff:ff:ff:ff:ff
6: vswif0: mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:50:56:4d:69:d1 brd ff:ff:ff:ff:ff:ff
inet 192.168.0.75/24 brd 192.168.0.255 scope global vswif0
7: vswif1: mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:50:56:4f:45:b1 brd ff:ff:ff:ff:ff:ff
9: vswif2: mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:50:56:43:92:be brd ff:ff:ff:ff:ff:ff
inet 192.168.0.96/24 brd 192.168.0.255 scope global vswif2
=========================================================================
2. To check the ESX vswitch details, port group and its ip address:
Esxcfg-vswitch -l
Outuput will appear like this:
=========================================================================
[root@ESXTEST1 ~]# esxcfg-vswitch -l
Switch Name Num Ports Used Ports Configured Ports MTU Uplinks
vSwitch0 32 4 32 1500 vmnic0
PortGroup Name VLAN ID Used Ports Uplinks
Service Console 0 1 vmnic0
VMkernel 0 1 vmnic0
Switch Name Num Ports Used Ports Configured Ports MTU Uplinks
vSwitch1 64 3 64 1500 vmnic2,vmnic1
PortGroup Name VLAN ID Used Ports Uplinks
VM-10.0.0 subnet 0 0 vmnic2,vmnic1
VM-192.168.0 subnet 0 0 vmnic2,vmnic1
Switch Name Num Ports Used Ports Configured Ports MTU Uplinks
vSwitch2 64 4 64 1500 vmnic3
PortGroup Name VLAN ID Used Ports Uplinks
Service Console 2 0 1 vmnic3
Vmotion 0 1 vmnic3
=========================================================================
From the above output,
we come to know that we have 3 virtual switches named vSwitch0,vSwitch1 and vSwitch2.
4 uplinks (physical nics in our esx server) Vmnic0,vmnic1,vmnic2,vmnic3.
vswitch0 constains 2 port group (Service Console & VMKernel), vSwitch1 contains 2 virtual machine port group (VM-10.0.0 subnet & VM-192.168.0 subnet) and Vswitch2 contains 2 port group (Service Console 2 & Vmotion) port group.
3. To get the information about Service console ports and its ip address
esxcfg-vswif -l
Output will appear like this:
=========================================================================
[root@ESXTEST1 ~]# esxcfg-vswif -l
Name Port Group/DVPort IP Family IP Address Netmask Broadcast Enabled TYPE
vswif0 Service Console IPv4 192.168.0.75 255.255.255.0 192.168.0.255 true STATIC
vswif1 Service Console 2 IPv4 192.168.0.78 255.255.255.0 192.168.0.255 false STATIC
=========================================================================
4. To get the information about vmkernel ports and its ip address:
esxcfg-vmknic -l
Output will appear like this:
=========================================================================
[root@ESXTEST1 ~]# esxcfg-vmknic -l
Interface Port Group/DVPort IP Family IP Address Netmask Broadcast MAC Address MTU TSO MSS Enabled Type
vmk0 VMkernel IPv4 192.168.0.110 255.255.255.0 192.168.0.255 00:50:56:78:7e:73 1500 65535 true STATIC
vmk1 Vmotion IPv4 192.168.0.77 255.255.255.0 192.168.0.255 00:50:56:76:42:df 1500 65535 true S
=========================================================================
5. To get the information about physical nics installed on ESX server
esxcfg-vmknic -l
Output will appear like this:
=========================================================================
[root@ESXTEST1 sbin]# esxcfg-nics -l
Name PCI Driver Link Speed Duplex MAC Address MTU Description
vmnic0 02:00.00 e1000 Up 1000Mbps Full 00:0c:29:85:0d:76 1500 Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
vmnic1 02:02.00 e1000 Up 1000Mbps Full 00:0c:29:85:0d:80 1500 Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
vmnic2 02:03.00 e1000 Up 1000Mbps Full 00:0c:29:85:0d:8a 1500 Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
vmnic3 02:04.00 e1000 Up 1000Mbps Full 00:0c:29:85:0d:94 1500 Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
=========================================================================
6. To add the new virtual switch named (vswitch3) to our ESX server.
[root@ESXTEST1 sbin]# esxcfg-vswitch -a vswitch3
Now vswitch3 is created without any port group.
======================================================================
Switch Name Num Ports Used Ports Configured Ports MTU Uplinks
vswitch3 64 1 64 1500
PortGroup Name VLAN ID Used Ports Uplinks
=========================================================================
7.To add the new port group named (mgmt)to vswitch (vswitch 3):
[root@ESXTEST1 sbin]# esxcfg-vswitch -A mgmt vswitch3
now port group “mgmt” is added.
=========================================================================
Switch Name Num Ports Used Ports Configured Ports MTU Uplinks
vswitch3 64 1 64 1500
PortGroup Name VLAN ID Used Ports Uplinks
mgmt 0 0
=========================================================================
8. To add the service console port (vswif2) to our newly created port group “mgmt” with the ip addr 192.168.0.79
[root@ESXTEST1 sbin]# esxcfg-vswif -a vswif2 -i 192.168.0.79 -n 255.255.255.0 -p “mgmt”
where i is the ip address, n is subnet mask p is to mentione the port group name
=========================================================================
vswif2 mgmt IPv4 192.168.0.79 255.255.255.0 192.168.0.255 true STATIC
=========================================================================
9.To add the vmkernal port (vmk2) to our newly created port group “mgmt” with the ip addr 192.168.0.83
[root@ESXTEST1 sbin]# esxcfg-vmknic -a -i 192.168.0.83 -n 255.255.255.0 -p “mgmt“
=========================================================================
vmk2 mgmt IPv4 192.168.0.83 255.255.255.0 192.168.0.255 00:50:56:7b:bd:36 1500 65535 true STATIC
=========================================================================
10. To change the ip addresss of the existing service console “vswif2”.
nano /etc/sysconfig/network-scripts/ifcfg-vswif2.
Edit the file with your new id address ” 192.168.0.255″ then save and exit.
======================================================
DEVICE=vswif2
HOTPLUG=yes
MACADDR=00:50:56:43:92:be
ONBOOT=yes
PORTGROUP=mgmt
BOOTPROTO=static
BROADCAST=192.168.0.255
DHCPV6C=no
IPADDR=192.168.0.96
IPV6INIT=no
IPV6_AUTOCONF=no
NETMASK=255.255.255.0
======================================================
restart the network service for ip change to take effect:
[root@ESXTEST1 sysconfig]# service network restart
Shutting down interface vswif0: [ OK ]
Shutting down interface vswif2: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface vswif0: [ OK ]
Another way is to conncet to the console of the ESX server and at the shell prompt type in :esxcfg-vswif -d vswif2
This will delete the existing vswif0 and it will give the message about “nothing to flush”.
then type the below command
esxcfg-vswif -a vswif2 -p mgmt -i 192.168.0.97 -n 255.255.255.0
=========================================================================
[root@ESXTEST1 etc]# esxcfg-vswif -d vswif2
Nothing to flush.
[root@ESXTEST1 etc]# esxcfg-vswif -a vswif2 -p mgmt -i 192.168.0.97 -n 255.255.255.0
[2011-09-17 19:35:46 ‘Vnic’ warning] Generated New MAC address, 00:50:56:43:92:be for vswif2
Nothing to flush.
=========================================================================
11. To Edit the hostname and default gateway.
edit the below file:
nano /etc/sysconfig/network
======================================
NETWORKING=yes
HOSTNAME=ESXTEST1.lab.com
GATEWAY=192.168.0.20
GATEWAYDEV=vswif0
IPV6_AUTOCONF=no
NETWORKING_IPV6=no
======================================
restart the network service for ip change to take effect:
[root@ESXTEST1 sysconfig]# service network restart
12.To edit the host file:
nano /etc/hosts
Edit the file to make entry to your host file.
==========================================
127.0.0.1 localhost
::1 localhost
192.168.0.75 ESXTEST1.lab.com ESXTEST1
==========================================
13. To edit the DNs entry of your ESX server
nano /etc/resolv.conf
Edit the file to make changes or to make new entry of dns for your ESX server
========================
nameserver 192.168.0.20
search lab.com
=======================
14.To query the firewall ports
esxcfg-firewall – q
15. to open the port in firewall (port no 8877, tcp, incoming , name: test3
esxcfg-firewall -o 8877,tcp,in,test3