Hello, I have different dhcp (192.168.1.24) and tftp (192.168.1.220) servers. bb: 192.168.1.90
It is not the communication with the dhcp server. Here is the log from bb booting: $ sudo tcpdump host 192.168.1.90 11:05:10.823184 IP server.local.bootps > 192.168.1.90.bootpc: BOOTP/DHCP, Reply, length 300 11:05:10.824323 IP server.local.bootps > 192.168.1.90.bootpc: BOOTP/DHCP, Reply, length 300 11:05:10.855702 ARP, Request who-has 192.168.1.220 tell 192.168.1.90, length 46 11:05:21.467634 IP server.local.bootps > 192.168.1.90.bootpc: BOOTP/DHCP, Reply, length 340 11:05:21.474327 IP server.local.bootps > 192.168.1.90.bootpc: BOOTP/DHCP, Reply, length 340 11:05:23.534745 ARP, Request who-has 192.168.1.220 tell 192.168.1.90, length 46 11:05:32.045344 IP server.local.bootps > 192.168.1.90.bootpc: BOOTP/DHCP, Reply, length 300 11:05:32.046613 IP server.local.bootps > 192.168.1.90.bootpc: BOOTP/DHCP, Reply, length 300 11:05:36.090539 ARP, Request who-has router.ip tell 192.168.1.90, length 46 After startup of linuxcnc until the crash there no more dhcp packets. Until 10:45:01.011965 the gcode demo programm runns. Suddenly there is much communication with the tftp server. The last packet from bb is send at 10:45:11.265817 (difference about 10s). I have deletet many lines. If this lines are importend I can email this. Joachim from tftp server $ sudo tcpdump host 192.168.1.90 10:44:16.532576 IP 192.168.1.90 > 192.168.1.220: udp 10:44:16.532679 IP 192.168.1.220.nfs > 192.168.1.90.2545512483: reply ok 96 write 10:44:16.544526 IP 192.168.1.90.2562289699 > 192.168.1.220.nfs: 116 getattr fh Unknown/0100050148054846A7200C130A038804A06E01F4000000000000000000000000 10:44:16.544595 IP 192.168.1.220.nfs > 192.168.1.90.2562289699: reply ok 96 getattr REG 100664 ids 1001/1003 sz 6112 jjf: time difference! Linuxcnc is running demo gcode file 10:45:01.011965 IP 192.168.1.90.2579066915 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C13030064048E76FEF3000000000000000000000000 10:45:01.012104 IP 192.168.1.220.nfs > 192.168.1.90.2579066915: reply ok 96 getattr DIR 40775 ids 0/0 sz 4096 10:45:01.013088 IP 192.168.1.90.2595844131 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C133E0986046E5501F4000000000000000000000000 10:45:01.013189 IP 192.168.1.220.nfs > 192.168.1.90.2595844131: reply ok 96 getattr DIR 40755 ids 0/0 sz 4096 10:45:01.014210 IP 192.168.1.90.2612621347 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C13BC0A8604EC5601F4000000000000000000000000 10:45:01.014306 IP 192.168.1.220.nfs > 192.168.1.90.2612621347: reply ok 96 getattr REG 100644 ids 0/0 sz 3543 10:45:01.014887 IP 192.168.1.90.2629398563 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C13201A8204BC2401F4000000000000000000000000 10:45:01.014984 IP 192.168.1.220.nfs > 192.168.1.90.2629398563: reply ok 96 getattr DIR 40755 ids 0/0 sz 4096 10:45:01.015717 IP 192.168.1.90.2646175779 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C13241A8204C02401F4000000000000000000000000 10:45:01.015812 IP 192.168.1.220.nfs > 192.168.1.90.2646175779: reply ok 96 getattr DIR 41730 ids 0/102 sz 4096 10:45:01.016901 IP 192.168.1.90.2662952995 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C1375098604A55501F4000000000000000000000000 10:45:01.016998 IP 192.168.1.220.nfs > 192.168.1.90.2662952995: reply ok 96 getattr REG 100644 ids 0/0 sz 722 10:45:01.018052 IP 192.168.1.90.2679730211 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C13A0098604D05501F4000000000000000000000000 10:45:01.018148 IP 192.168.1.220.nfs > 192.168.1.90.2679730211: reply ok 96 getattr DIR 40755 ids 0/0 sz 4096 10:45:06.013733 ARP, Request who-has 192.168.1.220 tell 192.168.1.90, length 46 10:45:06.013745 ARP, Reply 192.168.1.220 is-at bc:ae:c5:97:30:76 (oui Unknown), length 28 10:45:09.388294 IP 192.168.1.90.2696507427 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C1310007604C60100F4000000000000000000000000 jjf:may lines deleted 10:45:11.078778 IP 192.168.1.220.nfs > 192.168.1.90.1824157731: reply ok 48 fsstat tsize 8192 bsize 4096 blocks 528446699 bfree 277512175 bavail 250668643 10:45:11.110626 IP 192.168.1.90.1840934947 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C1364108804057C01F4000000000000000000000000 10:45:11.110714 IP 192.168.1.220.nfs > 192.168.1.90.1840934947: reply ok 96 getattr REG 100755 ids 0/0 sz 34524 10:45:11.115341 IP 192.168.1.90.1857712163 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C135D298204F93301F4000000000000000000000000 10:45:11.115428 IP 192.168.1.220.nfs > 192.168.1.90.1857712163: reply ok 96 getattr REG 100755 ids 0/0 sz 97580 10:45:11.128452 IP 192.168.1.90.1874489379 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C13470A8604775601F4000000000000000000000000 10:45:11.128540 IP 192.168.1.220.nfs > 192.168.1.90.1874489379: reply ok 96 getattr REG 100644 ids 0/0 sz 45877 10:45:11.130452 IP 192.168.1.90.1891266595 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C13C22882045E3301F4000000000000000000000000 10:45:11.130539 IP 192.168.1.220.nfs > 192.168.1.90.1891266595: reply ok 96 getattr REG 100644 ids 0/0 sz 34444 10:45:11.132747 IP 192.168.1.90.1908043811 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C13C4288204603301F4000000000000000000000000 10:45:11.132848 IP 192.168.1.220.nfs > 192.168.1.90.1908043811: reply ok 96 getattr REG 100755 ids 0/0 sz 890124 10:45:11.212638 IP 192.168.1.90.1924821027 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C139B007604328D01F4000000000000000000000000 10:45:11.212725 IP 192.168.1.220.nfs > 192.168.1.90.1924821027: reply ok 96 getattr LNK 120777 ids 0/0 sz 7 10:45:11.214957 IP 192.168.1.90.1941598243 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C135F108804007C01F4000000000000000000000000 10:45:11.215041 IP 192.168.1.220.nfs > 192.168.1.90.1941598243: reply ok 96 getattr REG 100755 ids 0/0 sz 163952 10:45:11.239961 IP 192.168.1.90.1958375459 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C135F108804007C01F4000000000000000000000000 10:45:11.240049 IP 192.168.1.220.nfs > 192.168.1.90.1958375459: reply ok 96 getattr REG 100755 ids 0/0 sz 163952 10:45:11.243235 IP 192.168.1.90.1975152675 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C135D298204F93301F4000000000000000000000000 10:45:11.243323 IP 192.168.1.220.nfs > 192.168.1.90.1975152675: reply ok 96 getattr REG 100755 ids 0/0 sz 97580 10:45:11.259588 IP 192.168.1.90.1991929891 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C13470A8604775601F4000000000000000000000000 10:45:11.259693 IP 192.168.1.220.nfs > 192.168.1.90.1991929891: reply ok 96 getattr REG 100644 ids 0/0 sz 45877 10:45:11.261735 IP 192.168.1.90.2008707107 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C13D6288204723301F4000000000000000000000000 10:45:11.261840 IP 192.168.1.220.nfs > 192.168.1.90.2008707107: reply ok 96 getattr REG 100644 ids 0/0 sz 9816 10:45:11.265817 IP 192.168.1.90.2025484323 > 192.168.1.220.nfs: 104 getattr fh Unknown/0100050148054846A7200C13C4288204603301F4000000000000000000000000 10:45:11.265925 IP 192.168.1.220.nfs > 192.168.1.90.2025484323: reply ok 96 getattr REG 100755 ids 0/0 sz 890124 jjf: time difference! bb dead. 10:45:14.392823 ARP, Request who-has 192.168.1.90 tell 192.168.1.220, length 28 10:45:15.392862 ARP, Request who-has 192.168.1.90 tell 192.168.1.220, length 28 10:45:16.392876 ARP, Request who-has 192.168.1.90 tell 192.168.1.220, length 28 ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 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