meggers@mothra.nts.uci.edu (Mark Eggers) (08/18/90)
I am trying to run CUTCP or NCSA Telnet from the 'downstream' side of PC-Route 2.1. Since these PD telnets do not do tcp reassembly, I have set up the following in config.tel mtu=576 maxseg=512 This should assure me that no fragmentation occurs. However, when I connect to a Sparc running 4.03c, this is what happens: 0.00 TCP from 128.200.35.2.3602 to mothra.nts.uci.edu.telnet seq 612000, SYN, window 4096, <mss 1024> 0.01 TCP from mothra.nts.uci.edu.telnet to 128.200.35.2.3602 seq 100A7200, ack 612001, SYN, window 4096, <mss 1024> 128.200.35.2 is the PC, and mothra.nts.uci.edu is the Sparc. Both sides are using an mss of 1024, which will be fragmented by the 19200 SL/IP link running between the two PC-Route routers. How can I prevent this fragmentation?? BTW - PC/IP from FTP software performs flawlessly in the same setup, so at least the routing is set up properly. thanks - /mde/