VPN(pptp) remote access printer's problem

ros 5.24 pc to lan vpn(pptp) ok! vpn ip_pool is same as lan ip_pool,

ping from remote pc to lan pc and Network printer is ok!

Through “//ip/name” can share the files

the problem:

one is remote pc can not find Company network shared printer

the other is network printer can not find yet.

why?

The Windows Add-Printer wizard uses the SSDP protocol to detect printers. It broadcasts using the site-local multicast IP address. The site-local IP address that IPv4 uses is 239.255.255.250, routers will typically broadcast that packet within the site (excluding VPNs).

How can I solve this problem?