i post this in the 3rd party forum as foo_read_http seems to be kode's plugin.
i've been experimenting a bit with ipv6 streams (e.g. virginradio.co.uk offers such streams) but i don't get it working with foobar, so i guess foobar isn't ipv6 enabled at the moment. it's not that i would need it at this time but i'm interessted if it is planned to make foobar ipv6 enabled