I’ve got a VDSL Business Line with a /30 public IP Subnet for my use.
The provider uses a bit of a tricky configuration:
When you dial in with PPPoE you get a private 172.xx.xx.xx IP Address and also a default gateway. The provider static routes your public IPs to the private 172.xx you get. So now you can take your IP Addresses and bind them to interfaces and all works well.
The only issue is: I cannot make internet connections with the 172.xx IP, I have to use one of my public IPs. For example, NTP Service. In Cisco world I can do a “ntp source-interface” and select one of the interfaces where my public IPs are.
Is there any way to achieve this with vyos?
TL;DR: Default IP/Route does not go to the internet, how can I select source-interfaces for vyos-system?