Dear Sir, I have question about "ifExtnsChipSet ". RFC1229 says hardware chip sets of ifExtnsChipSet is managed by the IANA. Please let me know the which document defines the chipset code. Best Regards, ---------------------------- Tomoyuki Ide, SYSCOM Ltd. E-Mail: ide@syscom.fujikura.co.jp URL: http://www.syscom-net.co.jp Voice:+81-48-553-6711 Fax: +81-48-553-6714 ----------------------------