Hi Vanco! On Sun, 30 Sep 2001, vanco trencevski wrote:
> can somebody please answer me on this question: what is the minimum > lenght of a bootp packet? what is the maximum? I suppose you are having problems booting a client with bootp because not all options are passed from your dhcpd/bootpd. I.e. when using no vendor tags, everything works fine? Taking a look at the RFCs at [0]: -- RFC1497 (which is obsoleted by RC1533) -- When selecting information to put into the vendor specific area, care should be taken to not exceed the 64 byte length restriction. Nonessential information (such as host name and quote of the day server) may be excluded, which may later be located with a more appropriate service protocol, such as RLP or the WKS resource-type of the domain name system. Indeed, even RLP servers may be discovered using a broadcast request to locate a local RLP server. -- snap -- BOOTP is limited by the RFCs to 64 bytes of options. You can violate the RFC by specifically setting the limit higher. Actually most bootp clients expect this, because the old BSD bootpd never honored the spec (AFAIK). * dhcpd To violate the protocol in this way, add the following to your dhcpd.config configuration. option dhcp-max-message-size 1024; * bootpd Override the length in bootptab with :ms=1024: (or less) Besides that -- if it's an option -- switch to isc dhcpd. You won't regret it. Greetings, Jens [0] http://www.rfc-editor.org/cgi-bin/rfcsearch.pl, "bootp" search -- ruehmkorf at informatik dot uni hyphen koeln dot de
