option 67 (Bootfile-name) - to automate debian instalations preseed.cfg

[nbari]

How could I configure DHCPv4 to serve this option:

Code: [Select]

if substring (option vendor-class-identifier, 0, 3) = "d-i" {
    filename "http://host/preseed.cfg";
}
I would like to automate the installation of Debian

Any ideas ?