Hmm. One more thing then.
 LCP SHO PORT when you are connected?
 But yeah, all looks good here. Might need to go and dissect LAT 
 packets on the ethernet. Gah! I hate that. It's quite a chore...
    Johnny
 On 2025-10-26 19:35, Dave McGuire wrote:
  On 10/26/25 03:31, Johnny Billquist wrote:
  Dave. Apart from packet dumps, could you get the
following: 
    Packet dumps will take a few days but we will get them.
  Output from LCP SHO CHA on the RSX system.
       Node name = /LSSMFT/
       Node identification = //
       Service name = /LSSMFT/
       Service identification = /LSSM RSX-11M-PLUSPDP-11/53/
       Group codes 0
       Multicast timer = 20          Maximum buffers = 3
       Receive timeout = 30          Retransmit timer = 3
       Terminals = 16
       LAT Version = 5.1             LAT Protocol is active
  Output from SHOW PORT on the Lantronix 
 Here is one port where this happens, but it happens from all that 
 we've tried, including telnetting into the Lantronix and connecting 
 from there.
 Port 17: Username: mcguire             Physical Port 17 (Local Mode)
     Char Size/Stop Bits:         8/1    Input Speed:                 
 9600
     Flow Ctrl:              Xon/Xoff    Output Speed:                
 9600
     Parity:                    None    Modem Control:               None
     Access:                  Dynamic    Local Switch:                
 None
     Backward:                   None    Port Name:                  
 VT330
     Break Ctrl:                Local   Session 
 Limit:                  4
     Forward:                    None    Terminal Type:             
 Soft()
     Autostart char(s):         --/--    Datasend char(s):           
 --/--
     Save chars (AS/DS):    none/none    Timer:                     
 (none)
     Preferred Services:        (Lat)
                             (Telnet)
     Authorized Groups : 0
     (Current)  Groups : 0
     Characteristics:  Autoprompt  Broadcast  Loss Notify  Verify
                       Remote Conf TelnetPad
  Output from SHOW SYSTEM on Lantronix. 
    I believe that would be SHOW SERVER.  This line-wrapped a lot.
     ETS32PR Version V3.6/8(010807)         Uptime:            9 Days 
 16:39
     Hardware Addr: 00-80-a3-24-98-7a       Name/Nodenum: ETS-2/ 0
     Ident String: Middle Console Cluster
 LAT  Circuit Timer (msec):         80     Password 
 Limit:                3
     Inactive Timer (min):           30     Console 
 Port:                  1
     Queue Limit:                   32     Retrans 
 Limit:                25
     Keepalive Timer (sec):          20     Session 
 Limit:                 4
     Multicast Timer (sec):          30     Node/Host Limits: 50/20
 TCP/IP Address:         192.168.0.199     Subnet Mask: 255.255.255.0
     Nameserver:          192.168.0.108     Backup 
 Nameserver:  192.168.0.1
     TCP/IP Gateway:       192.168.0.2     Backup Gateway: 192.168.0.37
     Domain Name:         
LSSMUSEUM.ORG     IP Time: Daytime
                                            TCP Keepalives: Enabled
     DHCP Server:                  None     Lease Time: 0:00
     Prompt:                Local_%n%P>    Network 
 Buffering:         4096
     Groups: 0
     Characteristics:  Announce  Broadcast Lock
     Incoming Logins:  LAT  Telnet  (No Passwords Required)
  Output from SHOW KNOWN SERVICES on Lantronix.
    There's no "KNOWN" but here's "SHOW SERVICES":
 ASC20                Available       Welcome to LSSM SC40 Tops20, 
 TOPS-20 Mon
 CL7830               Unavailable     MODCOMP Classic7830 console
 CRAYEL               Available       Cray YMP-EL console
 DEC7000              Available       DEC7000 console
 DECNET               Available       Linux3.5.0-17-generic
 ETS-1                Available       Front Terminal Cluster
 ETS-2                Available       Middle Console Cluster
 ETS-3                Available       Front Console Cluster
 ETS-5                Available       ETS Terminal Server
 G4490XT              Available       Genicom 4490XT
 HSC90                Available       HSC90 console
 IBMAEA1              Available       IBM3174 AEA1
 IBMAEA2              Available       IBM3174 AEA2
 IPSCFE               Available       InteliPSC front end
 LA100                Available       LA100 printing terminal
 LSSMFT             1 Connected       LSSM RSX-11M-PLUS PDP-11/53
 MICROVAXII          Available       MicroVAX-II console
 MODCOMP1             Available       MODCOMP interactive BAT001
 MODCOMP2             Available       MODCOMP interactive BAT002
 PARSYTECFE          Available       Parsytec Supercluster frontend
 PDP1105              Available       PDP-11/05 console
 PDP1134              Available       PDP-11/34 console
 PDP1144              Available       PDP-11/44 console
 PDP1153           2 Connected       PDP-11/53 console
 PDP1170              Available       PDP-11/70 console
 PDP11T55             Available       PDP-11/T55 console
 PLATTER              Available       Linux 6.8.0-86-generic
 SC40                 Available      Systems Concepts SC-40 console
 SGIO2K               Available       SGI Origin-2000 console
 SGIO3K               Available       SGI Origin-3000 console
 SPXG                 Available        Welcome to OpenVMS (TM) VAX 
 Operating S
 SUN3280              Available       Sun-3/280 console
 SUN4690MP            Available       Sun-4/690MP console
 TANIA                Available       OpenVMS/IA64
 TEK4014              Unavailable     Tektronix 4014 terminal
 VAX11750             Available       VAX-11/750 console
 VAX4705A             Available       VAX-4000/705A console
 VAX6400              Available       VAX-6400 console
 VAX7000              Available       VAX-7000 console
 VAX8250              Available       VAX-8250 console
    And here's "SHOW SERVICE LSSMFT CHA":
 Service:  LSSMFT            Ident:  LSSM RSX-11M-PLUS PDP-11/53
    Rating: 1
    Enabled Groups: 0
  And if the Lantronix use different commands, I
hope you can figure 
 out what the equivalent commands would be. 
    They are substantially similar to the DECserver firmware.
  And also, if connected (as in RSX shows the port
as connected), the 
 output from DEV TTn: on RSX, where TTn: is whatever terminal is 
 indicated as connected. 
    LCP shows it as connected, as TT2:  "dev tt2:" says:
 TT2:    Not logged in
      CLI   = MCR   BUF   = 80.    HFILL = 0
      LINES = 24.    TERM =unknown    OWNER = none
      NOPRINTER_PORT    NOPASTHRU    NOSERIAL
      LOWER    NOPRIV   NOHOLD    NOSLAVE    NOESC   NOCRT    NOFORM 
 REMOTE
      ECHO    NOVFILL   NOHHT    NOFDX    WRAP    NORPA    NOEBC 
 TYPEAHEAD
      NOCTRLC    NOAVO    NOANSI    NODEC    NOEDIT    NOREGIS 
 NOSOFT    NOBLKMOD
      HSYNC    BRO    NOABAUD    TTSYNC
  You could also try a BRO TTn: FOOBAR, to see if
output to the port 
 works. 
    This waits awhile and says "BRO -- Message failed to reach TT2:"
             -Dave