PPoE gateway in different subnet

[glennonline]

I have a draytek 130 which forwards the configuration, so this is what I get as configuration by DHCP:
Status
up
DHCP
up Release
MAC Address
00:90:0b:3f:96:5b
IPv4 Address
46.44.164.217
Subnet mask IPv4
255.255.255.255
Gateway IPv4
212.121.121.219
IPv6 Link Local
fe80::290:bff:fe3f:965b%em1
MTU
1500
Media
1000baseT <full-duplex>In/out packets
7614332/9264229 (1.31 GiB/455.50 MiB)
In/out packets (pass)
7614332/9264229 (1.31 GiB/455.50 MiB)
In/out packets (block)
140127/0 (15.73 MiB/0 B)
In/out errors
0/0
Collisions
0

The gateway is in a different subnet, as is usual for PPoE, but it seems that pFsense is unable to handle this.

Previously I did manage to get this working by entering everything as above and setting 1 as the CIDR subnet mask, but now i'm unable to do so.

how could I solve this issue?</full-duplex>

[glennonline]

After updating my draytek 130 to firmware 3.7.9 the issue was solved and PPoE pass-through was possible.