Hello everyone,
I'm pretty new to Xen/XCP and I have a problem which I wasn't able to solve
yet. Maybe you can help me.
- I have to machines at Hetzner.
- I booked a failover ip from hetzner which can dynamically be re-routed to
one of the hosts.
- This IP can only be routed to one of the main IPs, so a router VM can not
be used.
I have tried different configurations so far and none of them seem to be
working.
I tried attaching the IP to xenbr0 and then configzured it in the VM, using
the host as the gateway. It currently looks as if the VM itself has
internet access, since its has an additional ip (with own MAC) too.
The config on the guest is:
# Failover-IP
iface eth0 inet static
address xx.4.4.170 # FailoverIP
netmask 255.255.255.192 # Netmask of the
hosts main IP
gateway xx.4.10.214 # IP of the host
broadcast xx.4.10.255 # BC adddress
for hosts main IP
pointopoint xx.4.10.214
dns-nameservers 213.133.98.98 213.133.99.99 213.133.100.100
iface eth0:1 inet static
address xx.4.10.242 # additional IP
netmask 255.255.255.192 #
broadcast xx.4.10.255 #
gateway xx.4.10.214 # IP of the host
dns-nameservers 213.133.98.98 213.133.99.99 213.133.100.100
When I ping xx.4.10.242, using "tcpdump -Kn | grep ICMP" I can see
the ping request and repsonse from the VM.
When I ping xx.4.4.170, I can only see the request on the host.
What exactly do I have to do to route this IP to a guest, which then
uses the host as its gateway.
Any Ideas?
Greetings
Sebastian
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