Time for a new release announcement of TCP/IP for RSX-11M-PLUS. Highlights: . IP multicasting have been implemented . TCP stability improvements Detailed information on things that have been done since the last release: IP: . Added IP multicast support, and functions to enable this on UDP sockets. UDP: . Added functions for joining and leaving multicast groups on sockets. TCP: . Bugfix in TCP. Under some circumstances, TCP will stop receiving data because of a calculation error on TCP sequence numbers. . Improvement in TCP. Code accidentally sent unnecessary probes when a socket is in Close Wait. . Bugfix in TCP. Any ICMP error received for a socket caused the TCP connection to close down. This should not happen for ICMP source quench or ICMP timeout messages. . Correct MSS computation and setup based on interface MTU. IFCONFIG: . Added ability to change MTU of interface in IFCONFIG. FTPD: . Bugfix in FTPD. Long home directory names caused FTPD to fail. Some additional notes: Some people might wonder why the multicast changes have been introduced, but no other changes related to it. I wanted to get this change out now in order to allow people the possibility to play with it, if anyone is interested. For my own part, I next plan to look at mDNS, to allow RSX to live in home networks without a proper DNS server, but still be visible to other systems. mDNS depends on multicast groups. In addition, the TCP corrections finally fixed some long standing problems that I have been observing that have been very rare, but very annoying to me. BQTCP is now behaving very well on the network, and I do not actually have any known issues (at this time) that that are nagging me. I hope this release will see a further reduction on work on protocols like IP, TCP and UDP, and future work will be even more focused on higher level protocols. As usual, the distribution is available from: ftp://mim.update.uu.se/bqtcp.dsk ftp://mim.update.uu.se/bqtcp.tap ftp://ftp.update.uu.se/pub/pdp11/rsx/tcpip/tcpip.dsk The documentation is also available through ftp on Mim, or also at http://mim.update.uu.se/tcpipdoc I hope people find this update useful. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol