Different subnets in 1 server

[Chogaw]

Hello,

i have server with proxmox ve 1.7. i have 4 different subnets on this server. I created new vps but it did not see the ip. I cannot login it. How can i fix this?

Thanks

 

[jekader]

what do you mean? you have 4 NICs? Or one of your NICs is the gateway to 4 different subnets inside the host system?

 

[Chogaw]

Hello,

My server ip is, 46.19.138.x, my additional subnets are 46.19.138.y/29, 46.19.137.a/29, 46.19.141.b/29

 

[dswartz]

Not a lot of detail here Are you saying the guest has those IPs assigned to it? An understanding of the network layout would help.

 

[Chogaw]

I dont know how can explain it more clear. My server ip is, 46.19.138.x

my additional subnets are 46.19.138.y/29, 46.19.137.a/29, 46.19.141.b/29

I am creating new openvz with 46.19.137.a but i cannot connect it.

 

[dswartz]

Being sarcastic will not get you help. You have provided several bits of information in your second post that were not in the first one.

 

[Chogaw]

Being sarcastic will not get you help. You have provided several bits of information in your second post that were not in the first one.

If you need any details you can ask. This is my first time for using Proxmox. I do not know what do i have to say, which detail do i need to give you.

 

[dswartz]

What kind of guest? How is the guest configured to use the subnet(s)? If it is an openvz guest, are you bridging the ethernet or using the container networking?

 

[claytonjr]

I think I've had the same problem before, albeit long ago. While I wasn't able to solve it, a networking guru has told me its a routing problem. I doubt it has anything to do with the guest itself.

My problem was similar, in that it could see one way, but not the other. For example, if memory serves me correctly, I could ping from 192.168.2.1 to 192.168.1.1. However, I could not ping the other way.

 

[Chogaw]

i tried to use both bridging and other. But i could not connect either way. I think i have mistake about ip adding to the server. Network department allocated my ips to my server and i tried to add these ips to my OS. How can i check it, did i add correctly or not?

 

[dswartz]

I'd need to see the see the setup on the guest. e.g. how is the subnet defined there?

 

[Chogaw]

Do you have chance to look at it?

 

[dswartz]

To look at what? You haven't posted your network setup. If you mean spend some unknown amount of time trying to help you personally, sorry, I don't have the time...

 

[Chogaw]

okay then. Please write me step by step, what do i need to show you, which folder, which code. I am not good at debian.

 

[dswartz]

Post the contents of /etc/network/interfaces to start with.

 

[Chogaw]

Here it is

auto lo
iface lo inet loopback
auto vmbr0
iface vmbr0 inet static
address a.b.c.122
netmask 255.255.255.248
gateway a.b.c.121
bridge_ports eth0
bridge_stp off
bridge_fd 0

 

[dswartz]

I assume the 'xxx' is sanitized? I hope the gateway address is not also xxx. If you wanted this private, you would have been better to sanitize the other part of the address. e.g. instead of 1.2.3.xxx, something like a.b.c.1 and a.b.c.2 etc... At this point, I can't help you unless I know the address and the gateway 'xxx' parts.

 

[Chogaw]

okay sorry about that.

address a.b.c.122
netmask 255.255.255.248
gateway a.b.c.121

 

[dswartz]

Wait, is the above /etc/network/interfaces from the host or the guest?

 

[dswartz]

For what it's worth, there is at least once (fairly) recent thread on these forums about similar situations. Here is one:

http://forum.proxmox.com/archive/index.php/t-4727.html?