Hi Folks,
I have a serious problem; i'm using an external VPS with an (unbound) failover ip to make a GRE-TAP tunnel to my Proxmox server at Hetzner.
I have one node with one windows guest. The tunnel worked absolutely perfect for a week, but then suddenly it quit working.
I thought it was on the VPS side; reinstalled that completely to be sure but the tunnel just doesnt work anymore.
I can still ping through it from the Hetzner side; and with TCPdump I see the traffic sending and reaching the Hetzner server but the Windows guest can't reach the internet anymore
I thought maybe this was related but I am not sure:
https://github.com/virtio-win/kvm-guest-drivers-windows/issues/416
VPS:
Proxmox:
Proxmox /interfaces:
Is there a bug with the GRETAP?
I am very in-experienced with networking stuff so I have no idea what to look for.
Greetings,
Merlijn
I have a serious problem; i'm using an external VPS with an (unbound) failover ip to make a GRE-TAP tunnel to my Proxmox server at Hetzner.
I have one node with one windows guest. The tunnel worked absolutely perfect for a week, but then suddenly it quit working.
I thought it was on the VPS side; reinstalled that completely to be sure but the tunnel just doesnt work anymore.
I can still ping through it from the Hetzner side; and with TCPdump I see the traffic sending and reaching the Hetzner server but the Windows guest can't reach the internet anymore
I thought maybe this was related but I am not sure:
https://github.com/virtio-win/kvm-guest-drivers-windows/issues/416
VPS:
Code:
ip link add tunnel0 type gretap remote 46.4.XX.XX local 5.196.XXX.XXX
ip link set up tunnel0
ip route add 10.10.10.0/24 dev tunnel0
ip addr add 10.10.10.2/24 dev tunnel0
arp -s 137.74.XX.XXX 02:00:00:XX:XX:XX -i eth0 pub
ip route add 137.74.XX.XXX/32 dev tunnel0Proxmox:
Code:
ip link add tunnel1 type gretap remote 5.196.XXX.XXX local 46.4.XX.XX
ip link set up tunnel1
ip route add 10.10.10.0/24 dev tunnel1
brctl addif vmbr1 tunnel1
ip addr add 10.10.10.1/24 dev vmbr1Proxmox /interfaces:
Code:
# network interface settings; autogenerated
# Please do NOT modify this file directly, unless you know what
# you're doing.
#
# If you want to manage parts of the network configuration manually,
# please utilize the 'source' or 'source-directory' directives to do
# so.
# PVE will preserve these directives, but will NOT read its network
# configuration from sourced files, so do not attempt to move any of
# the PVE managed interfaces into external files!
source /etc/network/interfaces.d/*
auto lo
iface lo inet loopback
iface lo inet6 loopback
auto eno1
iface eno1 inet static
address 46.4.XX.XX
netmask 255.255.255.255
gateway 46.4.XX.X
up route add -net 46.4.XX.X netmask 255.255.255.192 gw 46.4.XX.X dev eno1
iface eno1 inet6 static
address 2a01:4f8:221:XXXX:X
netmask 64
gateway fXXX::1
auto vmbr1
iface vmbr1 inet manual
bridge-ports none
bridge-stp off
bridge-fd 0Is there a bug with the GRETAP?
I am very in-experienced with networking stuff so I have no idea what to look for.
Greetings,
Merlijn
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