I would be extremely weary of changing this. What you see here is not a legitimate usecase but rather a server misconfiguration. If a server has both IPv4 and IPv6 addresses and serves only on IPv4, the admin should configure the firewall to send a proper ICMP response instead of swallowing TCP packets. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/625#issuecomment-345941600 ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-DEV list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1