5.0 with an unmanageably large number of service pack applications. I believe the NWIP encapsulation as a preferred means of exchanging packets idea was buried with version 4. NW 5 servers may be installed with support for either or both protocol stacks.
There exist various modules centering around the acronym cmd which allegedly facilitate hybrid environments slated to migrate to ip only. It's possible that servers thus configured encapsulate ipx within ip, but I'm far too undermotivated to ascertain the validity of that guess. I suppose that Novell has been fairly successful at obscuring the original meaning of PEP: many hits on general web searches turn up some documents on programmatically generating & sending ipx packets in the name of fine-tuing network diagnostic tools such as DOOM. Seaching Novell leads you to conclude that it refers to their Professional Education Program. "Howard C. Berkowitz" @groupstudy.com on 11/12/2001 06:22:40 PM Please respond to "Howard C. Berkowitz" Sent by: [EMAIL PROTECTED] To: [EMAIL PROTECTED] cc: (bcc: Kevin Cullimore) Subject: RE: What frame format used by TCP/IP? [7:25924] >In contrast to the IPX-based implementation described below, packet >captures seem to reveal that NCP DOES rely on a transport layer when using >IP as a network layer mechanism. What version of NetWare? It's my understanding that 5.x is native TCP/IP with encapsulated IPX available for backwards compatibility. Incidentally, older IPX-based NCP had an integrated transport function, not SPX but something called PEP. > > Flags: 0x00 > Status: 0x00 > Packet Length:66 > Timestamp: 19:09:38.677828 03/12/2001 >Ethernet Header > Destination: 00:90:7F:0F:0B:D5 > Source: 00:10:A4:F5:5A:66 > Protocol Type:0x0800 IP >IP Header - Internet Protocol Datagram > Version: 4 > Header Length: 5 (20 bytes) > Precedence: 0 > Type of Service: %0000 > Unused: %0 > Total Length: 48 > Identifier: 14671 > Fragmentation Flags: %010 Do Not Fragment > Fragment Offset: 0 (0 bytes) > Time To Live: 128 > IP Type: 0x06 TCP > Header Checksum: 0xF3B3 > Source IP Address: 210.225.86.53 > Dest. IP Address: xxx.xxx.xxx.x xxx.xx.xxxxxx.xxx > No Internet Datagram Options >TCP - Transport Control Protocol > Source Port: 2583 > Destination Port: 524 NCP > Sequence Number: 1273813107 > Ack Number: 0 > Offset: 7 > Reserved: %000000 > Code: %000010 > Synch Sequence > Window: 16384 > Checksum: 0x44D7 > Urgent Pointer: 0 > TCP Options: > Option Type: 2 Maximum Segment Size > Length: 4 > MSS: 1460 > Option Type: 1 No Operation > Option Type: 1 No Operation > Option Type: 4 > Length: 2 > Opt Value: > TCP Data Area: No more data. >Frame Check Sequence: 0x04007C00 > > > > > >"Priscilla Oppenheimer" @groupstudy.com on 11/12/2001 >02:55:08 PM > >Please respond to "Priscilla Oppenheimer" > >Sent by: [EMAIL PROTECTED] > >To: [EMAIL PROTECTED] >cc: (bcc: Kevin Cullimore) >Subject: RE: What frame format used by TCP/IP? [7:25924] > > >TCP/IP tells the Ethernet driver what kind of frame type to use and 99.99% >percent of TCP/IP implementations tell the driver to use Ethernet II, which >is the frame format that has Dest Src Type. This is also known as arpa in >the Cisco world. > >Is this what you were looking for, though? Or were you looking for a >comparison of IP with IPX and a comparison of SPX with TCP, which I could >write lots about too. ;-) > >One main difference between SPX and TCP, by the way, is that SPX is not >used much. It's used by RCONSOLE for remote administration and some SNA >gateways. Some printing services may use it. But most printing, file >sharing, etc. uses NetWare Core Protocol (NCP) which runs directly above >IPX. > >TCP, on the other hand, plays a major role in it stack. Many protocols run >above TCP, including FTP, HTTP, Telnet, SMTP, POP, LDAP, BGP, and others. > >Priscilla ================================================================ This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation. ================================================================ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=26073&t=25924 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
