Chapter 3 Basic Networking with vNetwork Standard Switches

9Select Use this port group for vMotion to enable this port group to advertise itself to another host as the network connection where vMotion traffic should be sent.

You can enable this property for only one vMotion and IP storage port group for each host. If this property is not enabled for any port group, migration with vMotion to this host is not possible.

10Choose whether to use this port group for fault tolerance logging.

11On an IPv6-enabled host, choose whether to use IP (Default), IPv6, or IP and IPv6 networking.

This option does not appear on hosts that do not have IPv6 enabled. IPv6 configuration cannot be used with dependent hardware iSCSI adapters.

12Click Next.

13Select Obtain IP settings automaticallyto use DHCP to obtain IP settings, or select Use the following IP settingsto specify IP settings manually.

If you choose to specify IP settings manually, provide this information. DHCP cannot be used with dependent hardware iSCSI adapters.

a Enter the IP address and subnet mask for the VMkernel interface.

This address must be different from the IP address set for the service console.

bClick Edit to set the VMkernel Default Gateway for VMkernel services, such as vMotion, NAS, and iSCSI.

cOn the DNS Configuration tab, the name of the host is entered by default.

The DNS server addresses that were specified during installation are also preselected, as is the domain.

dOn the Routing tab, the service console and the VMkernel each need their own gateway information.

A gateway is needed for connectivity to machines not on the same IP subnet as the service console or VMkernel. The default is static IP settings.

eClick OK, then click Next.

14If you are using IPv6 for the VMkernel interface, select one of the following options for obtaining IPv6 addresses.

n Obtain IPv6 addresses automatically through DHCP

n Obtain IPv6 addresses automatically through router advertisement n Static IPv6 addresses

15If you choose to use static IPv6 addresses, complete the following steps. a Click Add to add a new IPv6 address.

b Enter the IPv6 address and subnet prefix length, and click OK. c To change the VMkernel default gateway, click Edit.

16Click Next.

17Review the information, click Back to change any entries, and click Finish.

Service Console Configuration

The service console and the VMkernel use virtual Ethernet adapters to connect to a vSwitch and to reach networks that the vSwitch services.

Common service console configuration modifications include changing NICs and changing the settings for a NIC that is in use.

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ESX Configuration Guide

If there is only one service console connection, changing the service console configuration is not allowed. For a new connection, change the network settings to use an additional NIC. After you verify that the new connection is functioning properly, remove the old connection. You are switching over to the new NIC.

You can create a maximum of 16 service console ports in ESX.

Set Up Service Console Networking

A single service console network interface is set up during the ESX installation process. You can also add additional service console interfaces after ESX is up and running.

Procedure

1 Log in to the vSphere Client and select the host from the inventory panel. 2 Click the Configuration tab, and click Networking.

3 In the Virtual Switch view, click Add Networking.

4Select Service Console, and click Next.

5Select the vSwitch to use for network access, or select Create a new vSwitch, and click Next.

If no adapters appear in the Create a new virtual switch group, all network adapters in the system are being used by existing vSwitches.

6Enter the network label and VLAN ID, and click Next.

7 Enter the IP address and subnet mask, or select Obtain IP setting automatically.

8Click Edit to set the service console default gateway and click Next.

9On an IPV6-enabled host, select No IPv6 settings to use only IPv4 settings for the service console, or select Use the following IPv6 settings to configure IPv6 for the service console.

This screen does not appear if IPv6 is disabled on the host.

10If you choose to use IPv6, select how to obtain IPv6 addresses.

11If you chose Static IPv6 addresses, do the following: a Click Add to add a new IPv6 address.

b Enter the IPv6 address and subnet prefix length, and click OK. c To change the service console default gateway, click Edit.

12Click Next.

13Review the information, click Back to change any entries, and click Finish.

Configure Service Console Ports

You can edit service console port properties, such as IP settings and networking policies.

Procedure

1 Log in to the vSphere Client and select the host from the inventory panel.

2Click the Configuration tab, and click Networking.

3 On the right side of the page, click Properties for the vSwitch that you want to edit. 4 In the vSwitch Properties dialog box, click the Ports tab.

5Select Service Console and click Edit.

6To continue with the service console configuration, click Continue modifying this connection.

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7 Edit port properties, IP settings, and effective policies as necessary.

8Click OK.

Set the Default Gateway

You can configure one default gateway for the service console per TCP/IP stack. Routing is not available for software iSCSI Multipath configurations or dependent hardware iSCSI adapters.

CAUTION Make sure that your network settings are correct before saving your changes. If the network settings are misconfigured, the UI can lose connectivity to the host, and you must then reconfigure the host from the command line at the service console.

Procedure

1 Log into the vSphere Client and select the host from the inventory panel. 2 Click the Configuration tab, and click DNS and Routing.

3Click Properties.

4Click the Routing tab.

5Under Service Console, set the default gateway and gateway device for service console networking.

For the service console, the gateway device is needed only when two or more network adapters are using the same subnet. The gateway device determines which network adapter to use for the default route.

The service console and VMkernel are often not connected to the same network, each needs its own gateway information. A gateway is needed for connectivity to machines not on the same IP subnet as the service console or VMkernel interfaces.

On an IPv6-enabled host, you can also select a default gateway for IPv6 and a gateway device for IPv6 for service console networking.

6Under VMkernel, set the default gateway for VMkernel networking.

On an IPv6-enabled host, you can also select a default gateway for IPv6 for VMkernel networking.

7Click OK.

Display Service Console Information

You can view service console network information, such as the VLAN ID and network policies.

Procedure

1 Click the info icon to the left of the service console port group to display service console information.

2Click the X to close the information pop-up window.

Using DHCP for the Service Console

In most cases, you use static IP addresses for the service console. You can also set up the service console to use dynamic addressing, DHCP, if your DNS server can map the service console’s host name to the dynamically generated IP address.

If your DNS server cannot map the host name to its DHCP-generated IP address, use the service console’s numeric IP address to access the host. The numeric IP address might change as DHCP leases expire or when the system is rebooted. For this reason, VMware does not recommend using DHCP for the service console unless your DNS server can handle the host name translation.

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