WAN Gateway IP is not from WAN IP scope

[alftech]

Hi,

a have one problem.

ISP provider sets for me new ip address and gateway address, but GW is not from wan IP scope.

–--------------------------------------------------------
(not really ip adresses)

WAN IP : 45.14.15.16/32 (one public ip)
GW      : 172.16.6.17 Microtik in provider network
DNS    : some xxx.xxx.xxx.xxx for this time not important.

when I set this IP to wan interface nat does not work and i can't ping to gateway.
If I set IP as virtual and 1:1 nat to some computer in my LAN everything works fine.

Model with 1:1 NAT looks like this example working fine

WAN IP : 172.16.6.18/29
GW      : 172.16.6.17
DNS    : some xxx.xxx.xxx.xxx for this time not important.
VIRTUAL WAN IP 45.14.15.16 + NAT (1:1) 45.14.15.16/32 to some 192.168.2.x and fireewall rules

is it possible to set pfsense router to work with wan IP address and gw from other address scope?

[Cry Havok]

No device can route if the default gateway is not on a directly connected network.  However, was your netmask specified by your ISP as 255.255.255.255?

[alftech]

Yes 32 = 255.255.255.255
he said thet solve some address scope perhaps 8 + gateway.

Thank you for your answer.

[Cry Havok]

Often people use /32 to refer to a single IP, regardless of the netmask given by their provider, hence my checking ;)

That arrangement is, to put it mildly, a kludge.  It relies on the OS doing a broadcast for all communications, which not all will do.  I've seen it sometimes set with the host's IP as the gateway and had that work (different OS), but YMMV.