Download versions:
ftp://public.dhe.ibm.com/software/hk/cobra
May not be able to use the browser to download, use Thunder download later, the first night about 100kb / s, never downloaded a night, pause the next morning, and then re-download speeds of about 1M / s, quickly download finished .
I downloaded the Linux version of 32-bit, 64-bit.
ftp://public.dhe.ibm.com/software/hk/cobra/db2exc_970_LNX_x86.tar.gz
ftp://public.dhe.ibm.com/software/hk/cobra/db2exc_970_LNX_x86_64.tar.gz