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openvz under vmware [message #37149] Sat, 22 August 2009 14:46 Go to next message
notallowed is currently offline  notallowed
Messages: 2
Registered: August 2009
Junior Member
Hello,

I whant to play a little with openvz and see what are his capabilities. I have a CentOS 5.3 system running in a vmware machine. My problem is that after i install the openvz as explained here : http://www.howtoforge.com/installing-and-using-openvz-on-cen tos5.2-p2 i don't have internet access. I can ping network computers, but no external access. Does someone has any idea?

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Re: openvz under vmware [message #37152 is a reply to message #37149] Sun, 23 August 2009 06:07 Go to previous messageGo to next message
notallowed is currently offline  notallowed
Messages: 2
Registered: August 2009
Junior Member
Someone, any ideas?

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Re: openvz under vmware [message #37283 is a reply to message #37152] Sun, 30 August 2009 15:05 Go to previous messageGo to next message
maratrus is currently offline  maratrus
Messages: 1495
Registered: August 2007
Location: Moscow
Senior Member
To be able to answer your question we'd better know your network configuration.
Please, read the article
http://forum.openvz.org/index.php?t=msg&th=5501&star t=0&
Probably it'll help people to get more information about your problem.

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Re: openvz under vmware [message #37431 is a reply to message #37149] Thu, 10 September 2009 08:29 Go to previous messageGo to next message
guhd is currently offline  guhd
Messages: 2
Registered: September 2009
Junior Member
i have the same problem with openvz in a vmware system

- venet is used by openvz
- no iptables in place

ping from the host there openvz is installed works, but not from any other host (because other hosts have no arp entry for the host that is running on the openvz system)

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Re: openvz under vmware [message #37444 is a reply to message #37431] Fri, 11 September 2009 12:50 Go to previous messageGo to next message
maratrus is currently offline  maratrus
Messages: 1495
Registered: August 2007
Location: Moscow
Senior Member
Quote:

because other hosts have no arp entry for the host that is running on the openvz system


That's not a problem. A remote host should send "arp who-has" request. Can you observe such requests? (use tcpdump utility) Then a HN should reply on behalf of a VE because it consists proxy arp entry in arp table. Look inside the arp table on the HN (arp -n) command. Anyway tcpdump is one of the best things to use in such situations.

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Re: openvz under vmware [message #37477 is a reply to message #37444] Tue, 15 September 2009 13:21 Go to previous message
guhd is currently offline  guhd
Messages: 2
Registered: September 2009
Junior Member
Quote:
That's not a problem. A remote host should send "arp who-has" request. Can you observe such requests? (use tcpdump utility) Then a HN should reply on behalf of a VE because it consists proxy arp entry in arp table. Look inside the arp table on the HN (arp -n) command. Anyway tcpdump is one of the best things to use in such situations.


i checked the network traffic with tcpdump:
the HN does not reply

arp -n on HN
Address HWtype HWaddress Flags Mask Iface
10.0.0.1 ether 00:30:56:81:39:3b C eth0
10.0.0.205 ether 00:0c:15:a4:66:58 C (host there i ping the vz guest) eth0
10.0.0.206 * <from_interface> MP (vz guest) eth0
10.0.0.208 * <from_interface> MP (vz guest) eth0

[Updated on: Tue, 15 September 2009 13:23]

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