2013/8/20 Ola Lundqvist <[email protected]> > Hi > > It all depends on how you have done things. There are a few things > that is not fully clear that you should probably add in a forum > question. > > You mention that you use both venet and veth devices. It > is not clear what you use in this situation. > (To my knowledge only veth makes sense to use with vzbr). >
Yes, I'm using both devices. I've added veth device to the vzbr201 device with private IP address, e.g. 192.168.201.2. venet0 is used for public internet address, e.g. 1.2.3.4 > > It is also not clear how you add veth to the bridge. > I'm adding it via /etc/vz/vznet.conf: #!/bin/bash EXTERNAL_SCRIPT="/usr/sbin/vznetaddbr" > > I guess you have read this article: > http://openvz.org/Virtual_Ethernet_device > Did already. > > Also it may be so that even though you have added them to > different bridges, then the bridges may be connected to something > common. It is not clear from the text below. > How bridges can be connected to the same thing if they are different? > > Hope this helps for your forum question. > > Cheers, > > // Ola > > > On Tue, Aug 20, 2013 at 12:53:23AM +0400, spameden wrote: > > Yes, I have forwarding turned on. > > # sysctl -a 2>/dev/null|grep ip_forward > > net.ipv4.ip_forward = 1 > > Surely, I can try to ban this via iptables, but it's so much hassle to > > ban each time. > > I thought it should "work out out of the box".. > > Anyways, thanks for your point, I will try to post this on forums. > > > > 2013/8/20 Ola Lundqvist <[1][email protected]> > > > > Hi > > This kind of question belong more on the openvz forum > > [2]http://forum.openvz.org/. > > Please ask there. > > However I think it is not worwarded through "lo", instead I guess > > you > > have IP forwarding turned on in the kernel and as the kernel gets > > aware > > of those datagrams it will forward it to the correct place. To > > prevent > > that I guess you have to add some firewalling rules (see iptables). > > But again, this better belong on the forum, and I may be totally > > wrong. > > Cheers, > > // Ola > > > > On Tue, Aug 20, 2013 at 12:04:42AM +0400, spameden wrote: > > > Hi, list. > > > I'm sorry for copying 2 lists, but I really want to know what I'm > > doing > > > wrong. > > > I'm using Debian 6 Squeeze and OpenVZ CentOS kernel (converted > > from rpm > > > to deb). > > > I'm using veth as well as venet devices for networking. > > > To isolate multiple containers from each other I'm using vzbrXXX > > > devices on debian like this: > > > auto vzbr203 > > > iface vzbr203 inet static > > > address 192.168.203.1 > > > netmask 255.255.255.0 > > > broadcast 192.168.203.255 > > > bridge_ports none > > > bridge_fd 0 > > > bridge_maxwait 0 > > > auto vzbr202 > > > iface vzbr202 inet static > > > address 192.168.202.1 > > > netmask 255.255.255.0 > > > broadcast 192.168.202.255 > > > bridge_ports none > > > bridge_fd 0 > > > bridge_maxwait 0 > > > The problem I'm facing that in VE (for example with CTID 202) I > > can > > > ping or query 192.168.203.1 which is on HN of course, but I > > thought it > > > shouldn't be reachable. > > > Here is route table and ifconfig on CTID 202: > > > # ip r > > > default dev lo scope link > > > # ifconfig -a > > > lo Link encap:Local Loopback > > > inet addr:127.0.0.1 Mask:255.0.0.0 > > > inet6 addr: ::1/128 Scope:Host > > > UP LOOPBACK RUNNING MTU:16436 Metric:1 > > > RX packets:84021 errors:0 dropped:0 overruns:0 frame:0 > > > TX packets:84021 errors:0 dropped:0 overruns:0 > carrier:0 > > > collisions:0 txqueuelen:0 > > > RX bytes:5045068 (4.8 MiB) TX bytes:5045068 (4.8 MiB) > > > venet0 Link encap:UNSPEC HWaddr > > > 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 > > > BROADCAST POINTOPOINT NOARP MTU:1500 Metric:1 > > > RX packets:0 errors:0 dropped:0 overruns:0 frame:0 > > > TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 > > > collisions:0 txqueuelen:0 > > > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) > > > So I guess it's going through lo device? Why and how can I block > > this? > > > Many thanks. > > > > > _______________________________________________ > > > Debian mailing list > > > [3][email protected] > > > [4]https://lists.openvz.org/mailman/listinfo/debian > > -- > > --------------------- Ola Lundqvist --------------------------- > > / [5][email protected] Annebergsslingan 37 > \ > > | [6][email protected] 654 65 KARLSTAD > | > > | [7]http://inguza.com/ +46 (0)70-332 1551 > | > > \ gpg/f.p.: 7090 A92B 18FE 7994 0C36 4FE4 18A1 B1CF 0FE5 3DD9 / > > --------------------------------------------------------------- > > > > Referenser > > > > 1. mailto:[email protected] > > 2. http://forum.openvz.org/ > > 3. mailto:[email protected] > > 4. https://lists.openvz.org/mailman/listinfo/debian > > 5. mailto:[email protected] > > 6. mailto:[email protected] > > 7. http://inguza.com/ > > -- > --- Inguza Technology AB --- MSc in Information Technology ---- > / [email protected] Annebergsslingan 37 \ > | [email protected] 654 65 KARLSTAD | > | http://inguza.com/ Mobile: +46 (0)70-332 1551 | > \ gpg/f.p.: 7090 A92B 18FE 7994 0C36 4FE4 18A1 B1CF 0FE5 3DD9 / > --------------------------------------------------------------- >
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