[SOLVED] Proxmox 8.4 & Tailscale Subnet Routes

D

dac9

New Member
Mar 6, 2025
6
1
3
Hey All,

I updated from 8.3 > 8.4.

Since this update and reboot... my Tailscale VM that routed two networks has stopped routing.

Everything looks fine but I just cant get to any IP in the network that TailScale is routing.

I have added the IP forwarding rules to sysctl and use the below line to add my networks for routing.

tailscale up --accept-routes --advertise-routes=10.0.20.0/24,10.0.30.0/24

Does anyone have any ideas?

--
DC
 
You want to reach the subnets from the host, is this correct? Are they in the routing table?

Code: 
ip r

Is forwarding enabled?

Code: 
cat /proc/sys/net/ipv4/ip_forward
 
shanreich said:
You want to reach the subnets from the host, is this correct? Are they in the routing table?

Code: 
ip r

Is forwarding enabled?

Code: 
cat /proc/sys/net/ipv4/ip_forward
Click to expand...
Hey Mate,

Yes I want to be able to hit all my subnets from the Tailscale VM.

So my subnets are actually "10.0.40.0/24,10.0.50.0/24"

Here are the outputs from both commands:

Code: 
ip r
default via 10.0.50.1 dev enp6s18 proto dhcp src 10.0.50.164 metric 100
1.1.1.1 via 10.0.50.1 dev enp6s18 proto dhcp src 10.0.50.164 metric 100
9.9.9.9 via 10.0.50.1 dev enp6s18 proto dhcp src 10.0.50.164 metric 100
10.0.50.0/24 dev enp6s18 proto kernel scope link src 10.0.50.164 metric 100
10.0.50.1 dev enp6s18 proto dhcp scope link src 10.0.50.164 metric 100


Code: 
cat /proc/sys/net/ipv4/ip_forward
1

These are from my TailScale VM on Proxmox.

Thanks for taking a look and helping me out mate.
 
Last edited:
You must log in or register to reply here.
Top Bottom