Reading the ToSTNeT Virtual Server (TSE Protocol) or Virtual Server (FIX Protocol) are not allowed to share the same combination of an IP address and a port number to multiple virtual servers.
Please kindly confirm "2.2.2 IP Address, Port Number" in "System Interface Requirements for ToSTNeT".
Please refer to the following FAQ how to get "System Interface Requirements for ToSTNeT".
URL:
https://faqsd.jpx.co.jp/faq/show/6092?site_domain=en_application