On Thu, 10 Sep 1998, Default Debian Reader wrote: : Anyone tell me what tos 0xc0 is in ip headers?
First, install the doc-iana package. I'm no IP expert (I'm currently reading Stevens's IP Illustrated book) but if you are referring to the Type Of Service field, 0xc0 is not a valid choice. [ from /usr/doc/doc-iana/assignments/ip-parameters.gz ] TOS Value Description Reference --------- -------------------------- --------- 0000 Default [RFC1349] 0001 Minimize Monetary Cost [RFC1349] 0010 Maximize Reliability [RFC1349] 0100 Maximize Throughput [RFC1349] 1000 Minimize Delay [RFC1349] 1111 Maximize Security [RFC1455] The TOS value is used to indicate "better". Only one TOS value or property can be requested in any one IP datagram. -- Note that the TOS field is an eight-bit field composed of a three-bit precedence field, the 4-bit field described above, and one unused bit. This is confusing since a TOS "value" of 0001 is written in hex as 0x02. 0xc0 would be 011000000, so two bits in the precedence field have been set (and none of the TOS bits). According to Stevens, the precedence field is ignored, so I'm not sure what's going on here :) -- Nathan Norman MidcoNet 410 South Phillips Avenue Sioux Falls, SD mailto:[EMAIL PROTECTED] http://www.midco.net finger [EMAIL PROTECTED] for PGP Key: (0xA33B86E9)
