The IPv6 interface on fndca1.fnal.gov seems to work fine for me: ``` [2022-01-25 01:01:01.697435 +0100][Debug ][AsyncSock ] [fndca1.fnal.gov:1096.0] Attempting connection to [2620:6a:0:4812:f0:0:69:121]:1096 [2022-01-25 01:01:01.697510 +0100][Debug ][Poller ] Adding socket 0x8715c0 to the poller [2022-01-25 01:01:01.800739 +0100][Debug ][AsyncSock ] [fndca1.fnal.gov:1096.0] Async connection call returned [2022-01-25 01:01:01.800825 +0100][Debug ][XRootDTransport ] [fndca1.fnal.gov:1096.0] Sending out the initial hand shake + kXR_protocol [2022-01-25 01:01:01.904149 +0100][Debug ][XRootDTransport ] [fndca1.fnal.gov:1096.0] Got the server hand shake response (type: manager [], protocol version 500) [2022-01-25 01:01:01.904390 +0100][Debug ][XRootDTransport ] [fndca1.fnal.gov:1096.0] kXR_protocol successful (type: manager [], protocol version 500) [2022-01-25 01:01:01.905555 +0100][Debug ][XRootDTransport ] [fndca1.fnal.gov:1096.0] Sending out kXR_login request, username: rillingw, cgi: ?xrd.cc=ch&xrd.tz=1&xrd.appname=xrdcp&xrd.info=&xrd.hostname=lxplus7107.cern.ch&xrd.rn=v5.4.0, dual-stack: true, private IPv4: false, private IPv6: false [2022-01-25 01:01:02.013240 +0100][Debug ][XRootDTransport ] [fndca1.fnal.gov:1096.0] Logged in, session: 5c90986089a841eb0ba265ed43891fc8 [2022-01-25 01:01:02.013316 +0100][Debug ][XRootDTransport ] [fndca1.fnal.gov:1096.0] Authentication is required: &P=gsi,v:10400,c:ssl,ca:f5f0dfc2 [2022-01-25 01:01:02.013349 +0100][Debug ][XRootDTransport ] [fndca1.fnal.gov:1096.0] Sending authentication data [2022-01-25 01:01:02.015455 +0100][Debug ][XRootDTransport ] [fndca1.fnal.gov:1096.0] Trying to authenticate using gsi [2022-01-25 01:01:02.466388 +0100][Debug ][XRootDTransport ] [fndca1.fnal.gov:1096.0] Sending more authentication data for gsi [2022-01-25 01:01:02.600920 +0100][Debug ][XRootDTransport ] [fndca1.fnal.gov:1096.0] Authenticated with gsi. [2022-01-25 01:01:02.600977 +0100][Debug ][PostMaster ] [fndca1.fnal.gov:1096] Stream 0 connected. ``` (the data connection worked over IPv6 too, but I'll skip the logging output) There must be something else going on here. -- Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/1593#issuecomment-1020677685 You are receiving this because you are subscribed to this thread. Message ID: <[log in to unmask]> ######################################################################## 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