extremely low download speed

alkizx

New Member
Apr 30, 2024
7
1
3
Hi, I have a dedicated host on OVH where I have a bridge connected to a MikroTik VM, and both on the MikroTik (bandwidth test) and on the VMs behind the mk I have a very very slow download speed.
On the host the speed is correct both upload and download.
I have tried a thousand things and I don't know what to check.
I have this same configuration on other servers and they work perfectly.

Thanks.

1730749829492.png
1730749843141.png
 
You have not provided enough information for someone to help you.

What have you tried?

What is the configuration of your MikroTik VM?

Please share the contents of your /etc/network/interfaces file.
 
host:

auto lo
iface lo inet loopback

auto enp193s0f0np0
iface enp193s0f0np0 inet static
address 135.XXX.XXX.XXX/32
gateway 100.64.XXX.XXX


auto vmbr0
iface vmbr0 inet static
address 192.168.100.1/24
bridge-ports none
bridge-stp off
bridge-fd 0
up ip route add 94.XX.XX.XX/32 dev vmbr0 (aditional IP)

auto vmbr2
iface vmbr2 inet manual
bridge-ports none
bridge-stp off
bridge-fd 0


vm Mikrotik/pfsense (I have tried both I have tried both with the same problem)

WAn: 192.168.100.2 (vmbr0)
Gateway: 192.168.100.1

LAN: 172.26.0.10 (vmbr2)



vm Client(s):
LAN: 172.26.0.X (vmbr2)
gateway: 172.26.0.1

As a result, the download speed on clients is terribly slow.

Thanks
 
I suspect you are having more issues than just speed, and I am surprised that the configuration works.

IMPORTANT: I have not tested the configuration below and only know what you have posted. Make sure you understand it and its implications. If you use it be sure to be able to roll back if necessary. It is up to you to decide if it will work for you. It is an example only.

It looks like you are using OVH or something similar.

/etc/network/interfaces file:

Code:
auto lo
iface lo inet loopback

# Enable IP forwarding
up echo "1" > /proc/sys/net/ipv4/ip_forward

# Depending on your ISP, you may need this line. Uncomment to apply.
# up echo "1" > /proc/sys/net/ipv4/conf/enp193s0f0np0/proxy_arp

auto enp193s0f0np0
iface enp193s0f0np0 inet manual

auto vmbr0
iface vmbr0 inet static
address 135.XXX.XXX.XXX/32
gateway 100.64.XXX.XXX
bridge-ports enp193s0f0np0
bridge-stp off
bridge-fd 0

post-up /sbin/ip route add 94.XX.XX.XX/32 dev vmbr0
pre-down /sbin/ip route del 94.XX.XX.XX/32 dev vmbr0

auto vmbr2
iface vmbr2 inet manual
bridge-ports none
bridge-stp off
bridge-fd 0

In the router/firewall:

WAN on vmbr0:
IPv4: 94.XXX.XXX.XXX/32
Gateway: 100.64.XXX.XXX

Note: You might need to use a different gateway. Check with the provider.

LAN on vmbr2:
Same as you had.
 

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!