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IP Configuration Problem with release 9.2.10535

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Hi, I´ve been working with all versions before this last release and I was able to insert the ip my isp is giving me. The isp is ovh, and I´m using the virtual machine appliance, the problem is when I use the ip failover data for example:

ip: x.x.x.x
subnet: 255.255.255.255 (this is like I´ve always been using and like ovh says it has to be)
default gateway: y.y.y.y
dns. 8.8.8.8

The problem is that when I save the ip configuration data and try to enter again in the configuration, the default gateway (y.y.y.y) it´s not there and I´m not able to access to the vmprotect via web. It works if I change 255.255.255.255 for 255.255.255.0 but this is an incorrect configuration and my isp cut the connections due to invalid packets or something like that.

I´ve had no troubles since version 8, this is the first release that seems to have this problem.

Please fix this for next releases or give me a solution.

Thanks

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Messaggi: 22
Commenti: 3800

Hi,

With 255.255.255.255 mask the only IP address which is accessible from the machine will be the self IP address of the machine, since this subnet consists of a single address. Therefore any gateway IP which is not equal to the IP of the machine will not be valid one (there will be no route to gateway IP) and this is why you are not allowed to set different IP for gateway (it is reset in GUI). In 8th version there was no check for gateway validity and this was fixed in the 9th version: the unroutable gateway is rejected by the Linux kernel itself and is not allowed to be set. If your provider uses some custom specific routing schemes, can you please send me the details of how the routing is supposed to be set with 255.255.255.255 netmask in a private message, so that I can check.

Thank you.
--
Best regards,
Vasily
Acronis Virtualization Program Manager

This is the guide for configuration:

http://help.ovh.com/BridgeClient

As I said, I think Acronis has implemented this update in the release 9.2.10535 because until now I haven´t have to modify anything.

At the end of the link there is this command I use for other distributions of linux:

Ip : IP.FAIL.OVER (the one ovh assign)
netmask : 255.255.255.255 (it´s always that way)

You will then be added to the Virtual Machine:

route add GATEWAY_VM dev eth0
route add default gw GATEWAY_VM

I think if I´m able to enter to the console some way and I can add this it will work.

Is it possible or another way around?

Thanks

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Messaggi: 22
Commenti: 3800

Hi,

Thank you for the link, it was really helpful. I've managed to set up the 255.255.255.255 netmaks and gateway using the instructions from this guide. Here's what you need to do:

1) Open the appliance console in vSphere client and set up the network settings: IP, netmask, DNS . The gateway field should remain blank.
2) Switch to command prompt: Ctrl+Shift+Alt+Space+F1, then Alt+F2
3) In the command prompt issue the commands:

route add GATEWAY_VM dev eth0
route add default gw GATEWAY_VM

Where GATEWAY_VM is the IP of your gateway (your VM IP address with .254 in the end). These commands are taken from the instructions from OVH site and appear to be working with Acronis Backup for VMware 9.

4) Switch back to GUI by pressing Alt+F1 and confirm that gateway is set in network settings in GUI

The problem was that in 8th version we were able to add the route directly through the Eth interface ('route add [GW_IP] dev eth0') while in 9th version this route is not configured automatically. I've submitted this issue to our developers for fixing in the next version.

Thank you.
--
Best regards,
Vasily
Acronis Virtualization Program Manager

Ok, thank you for your quick support. I will try it tonight.

That was fast! +1 for Acronis support team