[pve-devel] [PATCH] add routed network mode

[Alexandre DERUMIER]

I found the old forum post, 
http://forum.proxmox.com/threads/13832-Multiple-Public-IP-help-plz!?highlight=subnet

but seem that finally I didn't have solved the user problem

the setup was this:



IP ADDRESSE (main proxmox ip)
Primary IP address : xxx.xxx.164.207
Primary IP mask : 255.255.255.224
Gateway : xxx.xxx.164.193

SECONDARY IP ADDRESS (block)
Usable secondary addresses: xxx.xxx.7.144-151
Mask : 255.255.255.248


as you see, we can't use the gateway xxx.xxx.164.193 for the range xxx.xxx.7.144-151.
How do you resolve that ?



----- Mail original ----- 

De: "Alexandre DERUMIER" <aderumier at odiso.com> 
À: "Dietmar Maurer" <dietmar at proxmox.com> 
Cc: pve-devel at pve.proxmox.com 
Envoyé: Mardi 27 Août 2013 10:01:59 
Objet: Re: [pve-devel] [PATCH] add routed network mode 

>>I posted my code to make it clear what I talk about. 

So, for your setup, why not simply do a standard bridge setup + proxyarp ? 

host config: 
----------- 
auto vmbr0 
iface eth0 inet static 
address 192.168.1.2 
netmask 255.255.255.0 
gateway 192.168.1.1 
bridge_ports eth0 
bridge_stp off 
bridge_fd 0 


guest config: (tap is on vmbr0) 
--------------------------------- 
iface eth0 inet static 
address 192.168.1.3 
netmask 255.255.255.0 
gateway 192.168.1.1 


echo 1 > /proc/sys/net/ipv4/conf/tap/proxy_arp 
echo 1 > /proc/sys/net/ipv4/conf/eth0/proxy_arp 


provider router(192.168.1.1)----------eth0---proxmoxhost(192.168.1.2)-vmbr0----------tap 192.168.1.3 




----- Mail original ----- 

De: "Dietmar Maurer" <dietmar at proxmox.com> 
À: "Alexandre DERUMIER" <aderumier at odiso.com> 
Cc: pve-devel at pve.proxmox.com 
Envoyé: Mardi 27 Août 2013 08:53:41 
Objet: RE: [PATCH] add routed network mode 

> Oh, ok, I understand. So proxmox is not routing packets. 
> For me, this is not "routed" mode. 
> 
> what you do is something like bridging, but spoof guest mac address with 
> host mac address. 

Proxmox is routing, from tap to eth0 in above example. 

And this is by sure not bridging - you will see the difference when you implement a iptable firewall ;-) 

> If a routed setup, the provider give you a subnet range, routed to the 
> proxmox main ip. 
> and guests use proxmox ips as gateway. 
> 
> 
> So maybe are we talking about 2 differents this ? 

I posted my code to make it clear what I talk about. 

> (I need to check the forum, I had helped one use some time ago with routed 
> network on hetzner, with differents sub-ranges) 
> 
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