I wanted to build OpenWRT 15.05.1, so I cloned the git repository, and checked out the tag pointing to the release.
Build fails when it tries to get the kernel.
It tries to download the kernel from these sites:
ftp.all.kernel.org/pub/linux/kernel/v3.x/longterm/v3.18.23/linux-3.18.23.tar.xz
mirror2.openwrt.org/sources/linux-3.18.23.tar.xz
downloads.openwrt.org/sources/linux-3.18.23.tar.xz
Lev