Hello.
You can send these address through the provider’s gateway.
Example:
vyos@vyos# set protocols static route 192.168.200.18/32 next-hop 192.168.200.1
Result:
vyos@vyos# traceroute 192.168.200.18
traceroute to 192.168.200.18 (192.168.200.18), 30 hops max, 60 byte packets
1 192.168.200.1 (192.168.200.1) 13.713 ms 11.623 ms 11.274 ms
2 192.168.200.18 (192.168.200.18) 11.157 ms 11.039 ms 10.955 ms
[edit]
vyos@vyos# ip r
default via 192.168.200.1 dev eth0 proto static metric 20
192.168.100.0/26 dev eth1 proto kernel scope link src 192.168.100.8
192.168.200.0/26 dev eth0 proto kernel scope link src 192.168.200.8
192.168.200.18 via 192.168.200.1 dev eth0 proto static metric 20
192.168.201.0/26 dev eth0 proto kernel scope link src 192.168.201.8
[edit]