http://bugs.winehq.org/show_bug.cgi?id=59682 Bug ID: 59682 Summary: Windrose server: UDP bind to specific IPv4 behaves like 0.0.0.0%iface, causing wrong source IP and multihoming conflicts Product: Wine Version: 11.0 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: wineserver Assignee: wine-bugs@list.winehq.org Reporter: koekdendeniz@gmail.com Distribution: --- A Windows dedicated server application (WindroseServer-Win64-Shipping.exe) works correctly on native Windows, where binding to a specific IP via -Multihome=<IP> results in UDP sockets bound to that IP:PORT. Under Wine on Linux, the same server appears to bind correctly in Wine debug logs, but the resulting Linux UDP socket shows up as 0.0.0.0%iface:PORT instead of IP:PORT. This causes two problems: 1. Outgoing UDP replies use the wrong source IP (the host's main IP instead of the IP passed to -Multihome). 2. Multiple instances cannot use the same UDP port on different local IPs, because the socket effectively behaves like 0.0.0.0:PORT instead of IP_A:PORT and IP_B:PORT. Tested with: * host networking * multiple public IPv4 addresses assigned on the same host * command line using -Multihome=<IP> Expected result: UDP socket is bound to the specific IPv4 address, replies use that source IP, and multiple instances can bind the same UDP port on different local IPs. Actual result: UDP socket appears as 0.0.0.0%iface:PORT, replies use the wrong source IP, and same-port multi-IP hosting fails. -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.