• [^] # Re: On sais jamais...

    Posté par . En réponse au message Défaut d'accès réseau filaire en changeant de LAN. Évalué à 2.

    En single-user : je vois la passerelle, mais le ping reste aléatoire (1 à 3 paquets sur 5), et parfois très long ( > 1 s).
    J'accède aux DNS de la passerelle et à sortir, mais lentement après le tcpdump j'avais la page d'accueil de debian.org, renommée pour sa lourdeur ;), sans css ni images.

    16:47:05.939797 IP 192.168.50.12.43894 > 213.129.232.18.80: Flags [F.], seq 447400385, ack 1204617074, win 227, options [nop,nop,TS val 10829 ecr 502396089,nop,nop,sack 2 {5761:7201}{1441:4321}], length 0
    16:47:06.012929 IP 213.129.232.18.80 > 192.168.50.12.43894: Flags [.], ack 1, win 54, options [nop,nop,TS val 502418747 ecr 10829,nop,nop,sack 1 {0:1}], length 0
    16:47:07.099679 IP 192.168.50.12 > 192.168.50.1: ICMP echo request, id 3338, seq 1, length 64
    16:47:08.105925 IP 192.168.50.12 > 192.168.50.1: ICMP echo request, id 3338, seq 2, length 64
    16:47:08.106974 IP 192.168.50.1 > 192.168.50.12: ICMP echo reply, id 3338, seq 2, length 64
    16:47:09.107094 IP 192.168.50.12 > 192.168.50.1: ICMP echo request, id 3338, seq 3, length 64
    16:47:10.113902 IP 192.168.50.12 > 192.168.50.1: ICMP echo request, id 3338, seq 4, length 64
    16:47:11.121897 IP 192.168.50.12 > 192.168.50.1: ICMP echo request, id 3338, seq 5, length 64
    16:47:13.783794 IP 192.168.50.12.43893 > 213.129.232.18.80: Flags [F.], seq 439056781, ack 1191831842, win 115, options [nop,nop,TS val 12790 ecr 502399606], length 0
    16:47:15.090378 ARP, Request who-has 192.168.50.12 tell 192.168.50.1, length 46
    16:47:15.090395 ARP, Reply 192.168.50.12 is-at 00:0b:97:a0:bc:1f, length 28
    16:48:02.847794 IP 192.168.50.12.43889 > 213.129.232.18.80: Flags [F.], seq 152404176, ack 913552227, win 137, options [nop,nop,TS val 25056 ecr 502396640], length 0
    16:48:07.180401 IP 192.168.50.12.49977 > 192.168.50.1.53: 8942+ A? www.debian.org. (32)
    16:48:07.180450 IP 192.168.50.12.49977 > 192.168.50.1.53: 44564+ AAAA? www.debian.org. (32)
    16:48:07.202770 IP 192.168.50.12.54310 > 192.168.50.1.53: 8853+ A? www.w3.org. (28)
    16:48:07.202954 IP 192.168.50.12.54310 > 192.168.50.1.53: 36915+ AAAA? www.w3.org. (28)
    16:48:07.203288 IP 192.168.50.12.57857 > 192.168.50.1.53: 62188+ A? jigsaw.w3.org. (31)
    16:48:07.203376 IP 192.168.50.12.57857 > 192.168.50.1.53: 8406+ AAAA? jigsaw.w3.org. (31)
    16:48:07.280480 IP 192.168.50.1.53 > 192.168.50.12.57857: 8406 0/1/0 (82)
    16:48:07.847786 ARP, Request who-has 192.168.50.1 tell 192.168.50.12, length 28
    16:48:08.847786 ARP, Request who-has 192.168.50.1 tell 192.168.50.12, length 28
    16:48:09.847836 ARP, Request who-has 192.168.50.1 tell 192.168.50.12, length 28
    16:48:12.187788 ARP, Request who-has 192.168.50.1 tell 192.168.50.12, length 28
    16:48:13.187793 ARP, Request who-has 192.168.50.1 tell 192.168.50.12, length 28
    16:48:13.188406 ARP, Reply 192.168.50.1 is-at 00:22:b0:89:05:68, length 46
    16:48:13.188415 IP 192.168.50.12.54310 > 192.168.50.1.53: 8853+ A? www.w3.org. (28)
    16:48:13.188418 IP 192.168.50.12.54310 > 192.168.50.1.53: 36915+ AAAA? www.w3.org. (28)
    16:48:13.188422 IP 192.168.50.12.57857 > 192.168.50.1.53: 62188+ A? jigsaw.w3.org. (31)
    16:48:13.719078 IP 192.168.50.100.137 > 192.168.50.255.137: NBT UDP PACKET(137): QUERY; REQUEST; BROADCAST
    16:48:17.188664 IP 192.168.50.12.33302 > 192.168.50.1.53: 16715+ A? www.debian.org. (32)
    16:48:17.188704 IP 192.168.50.12.33302 > 192.168.50.1.53: 44952+ AAAA? www.debian.org. (32)
    16:48:17.208801 IP 192.168.50.12.50629 > 192.168.50.1.53: 52536+ A? www.w3.org. (28)
    16:48:17.208840 IP 192.168.50.12.50629 > 192.168.50.1.53: 2890+ AAAA? www.w3.org. (28)
    16:48:17.208973 IP 192.168.50.12.57857 > 192.168.50.1.53: 62188+ A? jigsaw.w3.org. (31)
    16:48:22.189852 IP 192.168.50.12.33302 > 192.168.50.1.53: 16715+ A? www.debian.org. (32)
    16:48:22.189891 IP 192.168.50.12.33302 > 192.168.50.1.53: 44952+ AAAA? www.debian.org. (32)
    16:48:22.212889 IP 192.168.50.12.50629 > 192.168.50.1.53: 52536+ A? www.w3.org. (28)
    16:48:22.212925 IP 192.168.50.12.50629 > 192.168.50.1.53: 2890+ AAAA? www.w3.org. (28)
    16:48:22.214062 IP 192.168.50.12.52300 > 192.168.50.1.53: 62445+ A? jigsaw.w3.org. (31)
    ^C
    39 packets captured
    39 packets received by filter
    0 packets dropped by kernel