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OK, we came up with a curious scenario. Wilko had his redirector on a host with only a public IP address while the data server was on a host with a private IP address. He used the default settings which currently is split routing. He connected to the redirector using a public IP address and was, obviously, told that the server that had the file was not reachable. Now, the problem is that at SLAC public and private addresses are all reachable both ways within the site because that's how the networking people set it up. So, he was rightfully confused. The solution for him was this awkward directive xrd.network routes local eth0,eth0 So, two questions come up: 1) What should be the default setting? I am now tempted to say "local" because that's how the old xrootd acted. Nnever mind that sites with *actual* pulic/private network folks were just as confused; at least it would be consistent. So, should the default be "local"? 2) Since each machine had a single interface it doesn't make sense to require that you specify the interfaces (notice that you are explicitly saying that by repeating the same interface). So, the question is should it be required that the interfaces be specified and if so, when? The choices are: a) Make it optional and if you really have a dual homed machines you better specify it or it becomes unpredictable whether or not the machine will be reachable it the routes are not local. b) Make it optional only for 'routes local' since it's likely you are using single homed machines. If you have a dual homed machine you can specify that but if you don't it will still work in a predictable, though not ideal, way. I sort of favor (b) but it's a toss up. So what are your thoughts? Read all about it here: http://www.xrootd.org/doc/dev4/xrd_config.htm#_Toc380525648 Andy ######################################################################## 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