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Re: openvpn and tap/bridging with a "dummy" network adapter? [message #1787 is a reply to message #1764]

Fri, 24 February 2006 01:45

snowdeal
Messages: 22
Registered: February 2006

Junior Member

dev wrote on Thu, 23 February 2006 05:20

1. have you got dummy network device in VPS?
vps# ifconfig -a

Did you simply move it from host via vzctl set --netdev_add?

i do now

thanks for the hint. i created it on the hardware node and moved it to the vps.

dev wrote on Thu, 23 February 2006 05:20

2. VPS have no rights to change MAC addresses by default.
This is a security limitation.

So you need to give CAP_NET_ADMIN capability to your VPS:
host# vzctl set VPSID --capability net_admin:on

thanks for that tip, but since i'm creating the dummy device on the hw node, i don't need to change the mac address in the vps.

but! i now have a new problem. after i create the dummy device and move it to the vps, inside the vps i then create the tap interface [1] but when i try to create br0 ( obviously i've installed bridge-utils in the vps ), i get an error [3]. perhaps i don't have another "capability option" turned on that's off by default? perhaps sys_admin or ve_admin?

is there a "capability option" that would allow me to create bridges in the vps?

is there a more detailed explanation of various capability options beyond the vzctl man page [4]?

[1] openvpn --mktun --dev tap0
[2] brctl addbr br0
[3] add bridge failed: Operation not permitted
[4] http://openvz.org/documentation/mans/vzctl.8

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[Message index]

		openvpn and tap/bridging with a "dummy" network adapter? By: snowdeal on Thu, 23 February 2006 03:29
		Re: openvpn and tap/bridging with a "dummy" network adapter? By: dev on Thu, 23 February 2006 10:20
		Re: openvpn and tap/bridging with a "dummy" network adapter? By: snowdeal on Fri, 24 February 2006 01:45
		Re: openvpn and tap/bridging with a "dummy" network adapter? By: dev on Fri, 24 February 2006 09:02
		Re: openvpn and tap/bridging with a "dummy" network adapter? By: snowdeal on Fri, 24 February 2006 19:38
		Re: openvpn and tap/bridging with a "dummy" network adapter? By: dev on Fri, 24 February 2006 21:31
		Re: openvpn and tap/bridging with a "dummy" network adapter? By: snowdeal on Sat, 25 February 2006 01:28
		Re: openvpn and tap/bridging with a "dummy" network adapter? By: dev on Sun, 26 February 2006 08:49
		Re: openvpn and tap/bridging with a "dummy" network adapter? By: snowdeal on Sun, 26 February 2006 14:56
		Re: openvpn and tap/bridging with a "dummy" network adapter? By: dev on Sun, 26 February 2006 19:26
		Re: openvpn and tap/bridging with a "dummy" network adapter? By: snowdeal on Mon, 27 February 2006 00:40
		Re: openvpn and tap/bridging with a "dummy" network adapter? By: dev on Mon, 27 February 2006 08:22
		Re: openvpn and tap/bridging with a "dummy" network adapter? By: snowdeal on Sun, 12 March 2006 04:31
		Re: openvpn and tap/bridging with a "dummy" network adapter? By: Jason Stubbs on Sun, 12 March 2006 08:07
		Re: openvpn and tap/bridging with a "dummy" network adapter? By: bensig on Fri, 21 December 2012 03:27

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