Lectures notes for 2010 - KTH

Vendor specific information
(RFC 1497 and RFC1533)
• if this area is used the first 4 bytes are: IP address 99.130.83.99
this is called the “magic cookie”
• the rest of the area is a list of items, possibly including:
• Pad (tag=0);
• Subnet mask (tag=1);
• Time offset (tag=2);
• List of IP addresses of Gateways (tag=3);
• Time server’s IP address (tag=4);
• Name Server (tag=5);
• Domain Name Server (tag=6);
• LOG server (tag=7); …
• LPR server (tag=9); …
• this Host’s name (tag=12);
• Boot file size (tag=13); …
• Domain name (tag=15); …
• End (tag=255)
Maguire Vendor specific information (RFC 1497 and RFC1533) 4: 32 of 74
maguire@kth.se 2010.03.21 Internetworking/Internetteknik