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From psjia <>
Subject 回复: RE: No DHCPOFFERS received
Date Wed, 26 Dec 2012 07:57:05 GMT
In my environment I use a L3 switch.At the beginning,I didn't configure the switch to allow
communications between vlans.Then i set up vlans and vlans' ip address and did the command
'ip routing' on the switch,after that,the instance can acquire ip from the vrouter which is
in a different host.

发件人: Pranav Saxena
发送时间: 2012-12-25 22:43
收件人:; psjia
主题: RE: Re: No DHCPOFFERS received
Great .  Could you please share how exactly you tackled the problem ? Perhaps it would help
other people out in the community if anyone happens to face this issue again.


-----Original Message-----
From: psjia [] 
Sent: Tuesday, December 25, 2012 7:37 PM
To: cloudstack-users
Subject: 回复: Re: No DHCPOFFERS received

The problem has been resolved。It's due to VLAN configuration on the switch。

发件人: Darren Xiong
发送时间: 2012-12-25 20:27
收件人: cloudstack-users
主题: Re: No DHCPOFFERS received
I had the same problems, I installed use cloudstack4.0.0 + XCP 1.0.0 I have configured the
physical switch interface as trunk port and allow all vlan to go through, but when guest vm
and VR on different host, the guest vm still can not get ip.
but in my another environment, same as above except the physical switch is not vlan support,
works fine.

2012/12/25 Venkata SwamyBabu Budumuru <>

> I think the issue is due to VLAN configuration on the L2 rack switch 
> for hosts.
> -----Original Message-----
> From: psjia []
> Sent: Tuesday, December 25, 2012 4:08 PM
> To: cloudstack-users
> Subject: 回复: No DHCPOFFERS received
> cloudstack3.0.2+xenserver6.0.2
> -----------------------------------
> 贾佩斯
> 中国民航信息网络股份有限公司
> 电子信箱
> 邮编:100010
> 地址:北京市东城区东四西大街157号
> -----------------------------------
> 发件人: psjia
> 发送时间: 2012-12-25 17:10
> 收件人: cloudstack-users
> 主题: No DHCPOFFERS received
> The instance cannot acquire a ip address via dhcp server of vrouter if 
> they are in different
> hosts。If the instance and the vrouter are in the same host,the 
> instance can acquire a ip via the dhcp server rightly。My environment 
> is 3.0.2。
> psjia
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