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VMkernel

hi

What is the default gateway for?
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CHI-LTD
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CHI-LTD
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2 Solutions
 
IanThCommented:
the router (the internet)

see
http://en.wikipedia.org/wiki/Default_gateway
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
The VMKernel TCP/IP stack Portgroup handles traffic for the following ESXi services iSCSI, NFS, VMware vMotion and host management. To create a multipath iSCSI network at least two VMKernel TCP/IP stack Portgroups needed to be created on a virtual switch.

The gateway is required if your NFS and iSCSI services are not on the local subnet, and you need to route to NAS (NFS) or SAN. (IP iSCSI)

Did not know, EE also has VMware Articles? Checkout my EE Articles

HOW TO: Add an iSCSI Software Adaptor and Create an iSCSI Multipath Network in VMware vSphere Hypervisor ESXi 4.1

HOW TO: Add an iSCSI Software Adaptor and Create an iSCSI Multipath Network in VMware vSphere Hypervisor ESXi 5.0
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CHI-LTDAuthor Commented:
i meant under - config - dns and routing config - routing.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
VMKernel-Gateway
yes, that's what I'm referring to!

VMKernel TCP/IP stack Portgroup  GATEWAY!

Configure gateways for the VMkernel to allow network connectivity to machines not on the same IP subnet.

A gateway is needed for connectivity to machines not on the same IP subnet as the VMkernel.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
so if you had you iSCSI SAN at your Datacentre, it was not available to you on your local network!
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CHI-LTDAuthor Commented:
Whats the difference?
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CHI-LTDAuthor Commented:
so i need to delete this gateway once i deploy a local SAN
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
there are two gateways in VMware vSphere

Gateway for Management Traffic - if you are managing ESX server, not on local subnet.

VMKernel Traffic Gateway - NFS and iSCSI.

You only need a VMKernel Traffic Gateway if you SAN (iSCSI) or NAS (NFS) is not on your local network. e.g. local subnet.
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CHI-LTDAuthor Commented:
would removing our local lan gatweay from the esxi config cause any issues?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Not unless, you are managing ESXi from another subnet?
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CHI-LTDAuthor Commented:
Not yet...
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
So it will not cause any issues BUT do you use HA?
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CHI-LTDAuthor Commented:
We will do.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
leave the Default in place for Gateway HA.
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