> -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On > Behalf Of Patrick O'Keefe > Sent: Friday, February 15, 2008 3:46 PM > To: [email protected] > Subject: Re: JES2 NJE question: SNA(CTC) vs. TCPIP > > On Fri, 15 Feb 2008 10:22:35 -0500, Shmuel Metz (Seymour J.) > <[EMAIL PROTECTED]> wrote: > > >... > >>Either way, I think he did mean Class C. > > > >No, Class C is a /24, not a /16. > >... > > Well, it's not so straightforward. > > In RFC 791, but rewritten better in RFC 1365: > Class A has the highest order bit set to 0, a 7 bit network number > and a 24 bit host address. > > Class B has the two higher order bits set to 10, a 14 bit network > number and a 16 bit host address. > > Class C has the three higher order bit set to 110, a 21 bit network > number and a 8 bit host address. > > 192.168/16 > 192 makes it class C; /16 makes it class B. > > You pick class B. I pick class C. > > In either case it is a private IP address, and IP address classes no
That was the whole point, John doesn't need his Network folks permission or to even tell them if he uses a private IP address for Hipersockets inside one CEC !!! > longer matter in the real world (except for IP address masks in > IBM's support of OSPF in OMPROUTE. grrrr.) > > Pat O'Keefe > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
