[pve-devel] [PATCH pve-network 0/7] add dhcp support for all zones
Stefan Hanreich
s.hanreich at proxmox.com
Thu Feb 22 11:13:54 CET 2024
On 12/22/23 22:27, DERUMIER, Alexandre wrote:
> Hi,
> I'll be on holiday next week (I'll be back the 2 january).
>
>
> I'll look at QinQ when I'll be back.
I've had another look at this patch series and I think I found the
reason for the issue(s) I encountered during my testing.
One issue is related to the new IP forwarding settings. It seems like
they are not applying. I've looked at the ifquery output after creating
a QinQ / VLAN zone with DHCP enabled:
{
"name": "qinq5",
"auto": true,
"config": {
"bridge-ports": "z_qinq5.456",
"bridge-stp": "no",
"bridge-fd": "0",
"ip-forward": "on",
"address": "172.16.5.1/32"
},
"config_status": {
"bridge-ports": "pass",
"bridge-stp": "pass",
"bridge-fd": "pass",
"ip-forward": "fail",
"address": "pass"
},
"status": "fail"
},
{
"name": "vlan4",
"auto": true,
"config": {
"bridge-ports": "ln_vlan4",
"bridge-stp": "no",
"bridge-fd": "0",
"ip-forward": "on",
"address": "172.16.4.1/32"
},
"config_status": {
"bridge-ports": "pass",
"bridge-stp": "pass",
"bridge-fd": "pass",
"ip-forward": "fail",
"address": "pass"
},
"status": "fail"
},
It seems like the ip-forward settings do not get applied and therefore
the command 'fails'. The bridges are up and working but IP forwarding is
enabled:
root at hoan-02:~# cat /proc/sys/net/ipv4/conf/vlan4/forwarding
1
root at hoan-02:~# cat /proc/sys/net/ipv4/conf/qinq5/forwarding
1
The other issue was using QinQ zone with a bridge that has no bridge
port configured and is not vlan-aware. In that case status is checking
for the existence of the sv_<id> interface but it doesn't exist since
there isn't a bridge port.
This is also occuring without this patch, so no show stopper here imo.
> It just miss the ip for dhcpserver different than gateway for ipv6
> handling for vlan/qinq/vxlan, but it should be easy to implement.
>
> Also, for ipv6 in vrf, it need a patch for dnsmasq, so I think this
> will need to proxmox dnsmasq package version.
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