[OmniOS-discuss] Ang: How to do networking between host and KVM guest?

Mon Feb 15 14:29:10 UTC 2016

Dominik,

Thanks, but, no i can't even ping by hostname or ip. 

netstat -rn -finet

Routing Table: IPv4

  Destination           Gateway           Flags  Ref     Use     Interface

-------------------- -------------------- ----- ----- ---------- ---------

default              192.168.200.1        UG        2          1 e1000g0

127.0.0.1            127.0.0.1            UH        2          0 lo0

192.168.200.0        192.168.200.190      U         8     108532 e1000g0

I read here that "By default, networking between the control domain and other domains in the system is disabled."

https://docs.oracle.com/cd/E19608-01/html/821-1485/enablenetworkbtwncsdomainandotherdomains.html

And here you need to do some etherstub plumbing with ifconfig, whcich i don't believe omniOS can do.

---- On Mon, 15 Feb 2016 15:12:10 +0100 Dominik Hassler <hasslerd at gmx.li>wrote ---- 

there is no need for an etherstub for your setup. 

I am running the same setup as you mentioned for several kvms (GZ and NGZ) in your first e-mail and no issues from guest to {host, outside} or from host {guest, outside}. 

you shold not assign an address to the vnic that will be used by the kvm. 

can you ping your guest from the host (hostname and/or IP)? might be a hostname resulution problem. 

Gesendet: Montag, 15. Februar 2016 um 14:55 Uhr 

Von: "Gordon Selisek" <gordon at hafnia.dk> 

An: "omnios-discuss at lists.omniti.com" <omnios-discuss at lists.omniti.com> 

Betreff: Re: [OmniOS-discuss] Ang: How to do networking between host and KVM guest? 

Johan, 

Thank you, i thought of that, but it's mentioned in oracle docs that Etherstubs are a pure software implementation of nics, so the can't communicate with the outside word, only and i need that both host and guest can do that, or did i misunderstand something? 

https://docs.oracle.com/cd/E26502_01/html/E28992/gmhfi.html  

says: 

# dladm create-etherstub etherstub 

Perform this step only if you are creating a private virtual network which you want to restrict from being accessed by external systems. For a description of a private virtual network, see Overview of Network Virtualization[https://docs.oracle.com/cd/E26502_01/html/E28992/gfkbw.html#scrolltoc]. 

---- On Mon, 15 Feb 2016 14:47:29 +0100 Johan Kragsterman <johan.kragsterman at capvert.se[johan.kragsterman at capvert.se]>wrote ---- 

Hi! 

-----"OmniOS-discuss" <omnios-discuss-bounces at lists.omniti.com[omnios-discuss-bounces at lists.omniti.com]> skrev: ----- 

Till: "omnios-discuss at lists.omniti.com[omnios-discuss at lists.omniti.com]" <omnios-discuss at lists.omniti.com[omnios-discuss at lists.omniti.com]> 

Från: Gordon Selisek 

Sänt av: "OmniOS-discuss" 

Datum: 2016-02-15 13:28 

Ärende: [OmniOS-discuss] How to do networking between host and KVM guest? 

Hi all, 

I ran into a problem, how to do networking between host and KVM guest? 

I read a lot of oracle documentation, but the virtual networking seems to be enough differently implemented, so that i can't wrap my head around it and apply it to omniOS. 

This is what i have, and the guest can communicate with the outside world and the host. The host communicate with the outside world, but not the guest. And if i assaign an address to vnic0, then the guest can not communicate with the host. 

dladm show-link 

LINK        CLASS     MTU    STATE    BRIDGE     OVER 

e1000g0     phys      1500   up       --         -- 

vnic0       vnic      1500   up       --         e1000g0 

ipadm show-addr 

ADDROBJ           TYPE     STATE        ADDR 

lo0/v4            static   ok           127.0.0.1/8 

e1000g0/lan       static   ok           192.168.200.190/24 

lo0/v6            static   ok           ::1/128 

Any hints? please? 

Cordial regards 

Gordon 

You need an internal virtual network, which you get with an internal virtual switch: Etherstub. To the etherstub you can connect any virtual interface from your host or your guest. 

/Johan 

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