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VMkernel

Posted on 2012-03-15
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Last Modified: 2012-08-13
hi

What is the default gateway for?
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Question by:CHI-LTD
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Expert Comment

by:IanTh
ID: 37725284
the router (the internet)

see
http://en.wikipedia.org/wiki/Default_gateway
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Expert Comment

by:IanTh
ID: 37725290
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Andrew Hancock (VMware vExpert / EE MVE^2) earned 500 total points
ID: 37725308
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)

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by:CHI-LTD
ID: 37725429
i meant under - config - dns and routing config - routing.
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by:Andrew Hancock (VMware vExpert / EE MVE^2)
Andrew Hancock (VMware vExpert / EE MVE^2) earned 500 total points
ID: 37725452
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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LVL 120
ID: 37725466
so if you had you iSCSI SAN at your Datacentre, it was not available to you on your local network!
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Author Comment

by:CHI-LTD
ID: 37725485
Whats the difference?
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Author Comment

by:CHI-LTD
ID: 37725488
so i need to delete this gateway once i deploy a local SAN
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LVL 120
ID: 37725606
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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Author Comment

by:CHI-LTD
ID: 37725627
would removing our local lan gatweay from the esxi config cause any issues?
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ID: 37725632
Not unless, you are managing ESXi from another subnet?
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Author Comment

by:CHI-LTD
ID: 37725665
Not yet...
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ID: 37725697
So it will not cause any issues BUT do you use HA?
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Author Comment

by:CHI-LTD
ID: 37725781
We will do.
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LVL 120
ID: 37725930
leave the Default in place for Gateway HA.
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