• Chris Friesen's avatar
    ipv4: teach ipconfig about the MTU option in DHCP · 9643f455
    Chris Friesen authored
    The DHCP spec allows the server to specify the MTU.  This can be useful
    for netbooting with UDP-based NFS-root on a network using jumbo frames.
    This patch allows the kernel IP autoconfiguration to handle this option
    correctly.
    
    It would be possible to use initramfs and add a script to set the MTU,
    but that seems like a complicated solution if no initramfs is otherwise
    necessary, and would bloat the kernel image more than this code would.
    
    This patch was originally submitted to LKML in 2003 by Hans-Peter Jansen.
    Signed-off-by: default avatarChris Friesen <cfriesen@nortel.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    9643f455
ipconfig.c 37 KB