[CentOS-virt] proper bridging technoque

aurfalien aurfalien at gmail.com
Thu Nov 21 04:38:11 UTC 2013


On Nov 20, 2013, at 8:03 PM, Digimer wrote:

> On 20/11/13 20:49, aurfalien wrote:
>> 
>> On Nov 20, 2013, at 4:47 PM, Digimer wrote:
>> 
>>> On 20/11/13 19:47, aurfalien wrote:
>>>> 
>>>> On Nov 20, 2013, at 4:44 PM, Digimer wrote:
>>>> 
>>>>> On 20/11/13 19:25, aurfalien wrote:
>>>>>> 
>>>>>> On Nov 20, 2013, at 4:13 PM, Digimer wrote:
>>>>>> 
>>>>>>> On 20/11/13 19:04, aurfalien wrote:
>>>>>>>> Hi,
>>>>>>>> 
>>>>>>>> Wondering if this is the proper bridging technique to use for Centos6+KVM;
>>>>>>>> 
>>>>>>>> http://wiki.centos.org/HowTos/KVM
>>>>>>>> 
>>>>>>>> Before I embark on this again, I would like to do it by the book.
>>>>>>>> 
>>>>>>>> Thanks in advance,
>>>>>>>> 
>>>>>>>> - aurf
>>>>>>> 
>>>>>>> Personally, I do this:
>>>>>>> 
>>>>>>> https://alteeve.ca/w/2-Node_Red_Hat_KVM_Cluster_Tutorial#Configuring_The_Bridge
>>>>>>> 
>>>>>>> It gives the VMs direct access to the outside network, as if they were
>>>>>>> normal servers. I've used this setup for years without issue under many
>>>>>>> different VMs with various OSes.
>>>>>>> 
>>>>>>> cheers
>>>>>> 
>>>>>> Many many thanks, will use it.
>>>>>> 
>>>>>> Sounds like it will bode well concerning jumbo frames.
>>>>>> 
>>>>>> - aurf
>>>>> 
>>>>> Jumbo frames should be fine. I don't generally use it myself, but I have
>>>>> tested it with success. Just be sure to enable it on the bridge and
>>>>> slaved devices. Simply adding 'MTU="xxxx"' to each ifcfg-x file should
>>>>> be sufficient.
>>>>> 
>>>>> -- 
>>>>> Digimer

OMG BINGO.

Yes, I've a few interfaces at standard MTU.

Was hoping for true isolation, but the ints aren't really isolated when in bridge mode.

This is good to know.

And thanks for the replies, its like a light bulb went off.

- aurf


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