1 Reply Latest reply on Mar 30, 2018 2:42 PM by Intel Corporation

    wireless-AC 9260 truncated packets on ubuntu

    ubuntuuser

      Hi, I am using a laptop with wireless-AC 9260 on ubuntu

       

      WiFi manages to connect to my access pointin WPA2 (see EAPOL message success below), but it apparently fails to get an IP address. I have tried with many access points and android hotspot.

       

      Looking at tcpdump traces, it seems that the wifi interface receives a bunch of truncated IP messages in response to the bootp request.

       

      How do I check if I have the right driver version, and right firmware?

       

      All the relevant information is below I think.

       

      Best Regards,

      Pierre

       

       

       

      pierre@pierre-GF62-7RE:~$ sudo lshw -C network

        *-network                

             description: Wireless interface

             product: Intel Corporation

             vendor: Intel Corporation

             physical id: 0

             bus info: pci@0000:02:00.0

             logical name: wlp2s0

             version: 29

             serial: a0:c5:89:b5:42:30

             width: 64 bits

             clock: 33MHz

             capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless

             configuration: broadcast=yes driver=iwlwifi driverversion=4.13.0-37-generic firmware=33.610294.0 latency=0 link=yes multicast=yes wireless=IEEE 802.11

             resources: irq:16 memory:df300000-df303fff

        *-network

             description: Ethernet interface

             product: Killer E2400 Gigabit Ethernet Controller

             vendor: Qualcomm Atheros

             physical id: 0

             bus info: pci@0000:03:00.0

             logical name: enp3s0

             version: 10

             serial: 30:9c:23:14:c6:8b

             size: 100Mbit/s

             capacity: 1Gbit/s

             width: 64 bits

             clock: 33MHz

             capabilities: pm pciexpress msi msix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation

             configuration: autonegotiation=on broadcast=yes driver=alx duplex=full ip=192.168.1.10 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s

             resources: irq:19 memory:df200000-df23ffff ioport:d000(size=128)

      pierre@pierre-GF62-7RE:~$

       

      pierre@pierre-GF62-7RE:~$ ls -al /lib/firmware/iwlwifi-

      iwlwifi-1000-5.ucode               iwlwifi-3160-9.ucode               iwlwifi-6050-5.ucode               iwlwifi-7265-17.ucode              iwlwifi-8000C-16.ucode

      iwlwifi-100-5.ucode                iwlwifi-3168-21.ucode              iwlwifi-7260-10.ucode              iwlwifi-7265-8.ucode               iwlwifi-8000C-21.ucode

      iwlwifi-105-6.ucode                iwlwifi-3168-22.ucode              iwlwifi-7260-12.ucode              iwlwifi-7265-9.ucode               iwlwifi-8000C-27.ucode

      iwlwifi-135-6.ucode                iwlwifi-3168-27.ucode              iwlwifi-7260-13.ucode              iwlwifi-7265D-10.ucode             iwlwifi-8000C-31.ucode

      iwlwifi-2000-6.ucode               iwlwifi-3168-29.ucode              iwlwifi-7260-16.ucode              iwlwifi-7265D-12.ucode             iwlwifi-8265-21.ucode

      iwlwifi-2030-6.ucode               iwlwifi-3945-2.ucode               iwlwifi-7260-17.ucode              iwlwifi-7265D-13.ucode             iwlwifi-8265-22.ucode

      iwlwifi-3160-10.ucode              iwlwifi-4965-2.ucode               iwlwifi-7260-7.ucode               iwlwifi-7265D-16.ucode             iwlwifi-8265-27.ucode

      iwlwifi-3160-12.ucode              iwlwifi-5000-5.ucode               iwlwifi-7260-8.ucode               iwlwifi-7265D-17.ucode             iwlwifi-8265-31.ucode

      iwlwifi-3160-13.ucode              iwlwifi-5150-2.ucode               iwlwifi-7260-9.ucode               iwlwifi-7265D-21.ucode             iwlwifi-9000-pu-b0-jf-b0-33.ucode

      iwlwifi-3160-16.ucode              iwlwifi-6000-4.ucode               iwlwifi-7265-10.ucode              iwlwifi-7265D-22.ucode             iwlwifi-9260-th-b0-jf-b0-33.ucode

      iwlwifi-3160-17.ucode              iwlwifi-6000g2a-5.ucode            iwlwifi-7265-12.ucode              iwlwifi-7265D-27.ucode            

      iwlwifi-3160-7.ucode               iwlwifi-6000g2a-6.ucode            iwlwifi-7265-13.ucode              iwlwifi-7265D-29.ucode            

      iwlwifi-3160-8.ucode               iwlwifi-6000g2b-6.ucode            iwlwifi-7265-16.ucode              iwlwifi-8000C-13.ucode 

       

      pierre@pierre-GF62-7RE:~$ iwconfig

      enp3s0    no wireless extensions.

       

      lo        no wireless extensions.

       

      wlp2s0    IEEE 802.11  ESSID:"PBV" 

                Mode:Managed  Frequency:5.22 GHz  Access Point: E0:91:F5:F9:FD:AE  

                Bit Rate=30 Mb/s   Tx-Power=22 dBm  

                Retry short limit:7   RTS thr:off   Fragment thr:off

                Power Management:on

                Link Quality=69/70  Signal level=-41 dBm 

                Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0

                Tx excessive retries:0  Invalid misc:16   Missed beacon:0

       

       

      pierre@pierre-GF62-7RE:~$ cat /proc/version

      Linux version 4.13.0-37-generic (buildd@lcy01-amd64-026) (gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu3.2)) #42-Ubuntu SMP Wed Mar 7 14:13:23 UTC 2018

       

      pierre@pierre-GF62-7RE:~$ ifconfig

      enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500

              inet 192.168.1.10  netmask 255.255.255.0  broadcast 192.168.1.255

              inet6 fe80::e554:fec3:aee7:3e80  prefixlen 64  scopeid 0x20<link>

              ether 30:9c:23:14:c6:8b  txqueuelen 1000  (Ethernet)

              RX packets 36153  bytes 29619342 (29.6 MB)

              RX errors 0  dropped 0  overruns 0  frame 0

              TX packets 30045  bytes 5310107 (5.3 MB)

              TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

              device interrupt 19 

       

      lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536

              inet 127.0.0.1  netmask 255.0.0.0

              inet6 ::1  prefixlen 128  scopeid 0x10<host>

              loop  txqueuelen 1000  (Local Loopback)

              RX packets 6144  bytes 557630 (557.6 KB)

              RX errors 0  dropped 0  overruns 0  frame 0

              TX packets 6144  bytes 557630 (557.6 KB)

              TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

       

      wlp2s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500

              ether a0:c5:89:b5:42:30  txqueuelen 1000  (Ethernet)

              RX packets 1424  bytes 198826 (198.8 KB)

              RX errors 0  dropped 0  overruns 0  frame 0

              TX packets 1441  bytes 226659 (226.6 KB)

              TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

       

       

      pierre@pierre-GF62-7RE:~$ sudo tcpdump -vvv -i wlp2s0

       

      23:20:46.120549 EAPOL key (3) v2, len 117

      23:20:46.120860 EAPOL key (3) v1, len 117

      23:20:46.128517 EAPOL key (3) v2, len 151

      23:20:46.128681 EAPOL key (3) v1, len 95

      23:20:46.164007 IP6 (hlim 1, next-header Options (0) payload length: 36) :: > ff02::16: HBH (rtalert: 0x0000) (padn) [icmp6 sum ok] ICMP6, multicast listener report v2, 1 group record(s) [gaddr ff02::1:ffde:1df6 to_ex { }]

      23:20:46.176243 IP (tos 0x10, ttl 128, id 0, offset 0, flags [none], proto UDP (17), length 328)

          0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from a0:c5:89:b5:42:30 (oui Unknown), length 300, xid 0xcee0c667, Flags [none] (0x0000)

            Client-Ethernet-Address a0:c5:89:b5:42:30 (oui Unknown)

            Vendor-rfc1048 Extensions

              Magic Cookie 0x63825363

              DHCP-Message Option 53, length 1: Discover

              Hostname Option 12, length 15: "pierre-GF62-7RE"

              Parameter-Request Option 55, length 16:

                Subnet-Mask, BR, Time-Zone, Default-Gateway

                Domain-Name, Domain-Name-Server, Option 119, Hostname

                Netbios-Name-Server, Netbios-Scope, MTU, Classless-Static-Route

                NTP, Classless-Static-Route-Microsoft, Static-Route, Option 252

              END Option 255, length 0

              PAD Option 0, length 0, occurs 21

      23:20:46.776096 IP6 (hlim 1, next-header Options (0) payload length: 36) :: > ff02::16: HBH (rtalert: 0x0000) (padn) [icmp6 sum ok] ICMP6, multicast listener report v2, 1 group record(s) [gaddr ff02::1:ffde:1df6 to_ex { }]

      23:20:47.096014 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) :: > ff02::1:ffde:1df6: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has pierre-GF62-7RE

            unknown option (14), length 8 (1):

              0x0000:  8ed9 a698 d136

      23:20:47.420171 IP6 truncated-ip6 - 8 bytes missing!(hlim 1, next-header UDP (17) payload length: 32) fe80::cc58:8b56:69f0:3e70.63044 > ff02::1:3.hostmon: UDP, length 24

      23:20:47.624912 IP truncated-ip - 8 bytes missing! (tos 0x0, ttl 64, id 12876, offset 0, flags [none], proto UDP (17), length 78)

          192.168.1.11.netbios-ns > 192.168.1.255.netbios-ns:

      >>> NBT UDP PACKET(137): QUERY; REQUEST; BROADCAST

      TrnID=0xED40

      OpCode=0

      NmFlags=0x11

      Rcode=0

      QueryCount=1

      AnswerCount=0

      AuthorityCount=0

      AddressRecCount=0

      QuestionRecords:

      Name=

      WARNING: Short packet. Try increasing the snap length

       

       

      23:20:48.120269 IP6 (hlim 1, next-header Options (0) payload length: 36) pierre-GF62-7RE > ff02::16: HBH (rtalert: 0x0000) (padn) [icmp6 sum ok] ICMP6, multicast listener report v2, 1 group record(s) [gaddr ff02::1:ffde:1df6 to_ex { }]

      23:20:48.121496 IP6 (flowlabel 0x1c1ef, hlim 255, next-header ICMPv6 (58) payload length: 8) pierre-GF62-7RE > ip6-allrouters: [icmp6 sum ok] ICMP6, router solicitation, length 8

      23:20:48.132068 IP6 (hlim 1, next-header Options (0) payload length: 56) pierre-GF62-7RE > ff02::16: HBH (rtalert: 0x0000) (padn) [icmp6 sum ok] ICMP6, multicast listener report v2, 2 group record(s) [gaddr ff02::1:3 to_ex { }] [gaddr ff02::fb to_ex { }]

      23:20:48.221502 IP6 (flowlabel 0x604e6, hlim 255, next-header UDP (17) payload length: 149) pierre-GF62-7RE.mdns > ff02::fb.mdns: [bad udp cksum 0x7cf5 -> 0x9d3e!] 0 [9q] PTR (QM)? _nfs._tcp.local. PTR (QM)? _ipp._tcp.local. PTR (QM)? _ipps._tcp.local. PTR (QM)? _ftp._tcp.local. PTR (QM)? _webdav._tcp.local. PTR (QM)? _webdavs._tcp.local. PTR (QM)? _sftp-ssh._tcp.local. PTR (QM)? _smb._tcp.local. PTR (QM)? _afpovertcp._tcp.local. (141)

      23:20:48.226943 IP6 (flowlabel 0x684f2, hlim 255, next-header UDP (17) payload length: 41) pierre-GF62-7RE.hostmon > ff02::1:3.hostmon: [bad udp cksum 0x7b92 -> 0x8083!] UDP, length 33

      23:20:48.241681 IP6 truncated-ip6 - 8 bytes missing!(hlim 1, next-header UDP (17) payload length: 30) fe80::cc58:8b56:69f0:3e70.61412 > ff02::1:3.hostmon: UDP, length 22

      23:20:48.241707 IP6 truncated-ip6 - 8 bytes missing!(hlim 255, next-header ICMPv6 (58) payload length: 32) pierre-GF62-7RE > ff02::1:ffde:1df6: ICMP6, neighbor solicitation, length 32, who has pierre-GF62-7RE

      23:20:48.316907 IP6 (flowlabel 0x604e6, hlim 255, next-header UDP (17) payload length: 167) pierre-GF62-7RE.mdns > ff02::fb.mdns: [bad udp cksum 0x7d07 -> 0x8096!] 0 [2q] [2n] ANY (QM)? 6.f.d.1.e.d.a.6.9.1.5.8.2.e.f.6.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa. ANY (QM)? pierre-GF62-7RE.local. ns: pierre-GF62-7RE.local. [2m] AAAA fe80::6fe2:8519:6ade:1df6, 6.f.d.1.e.d.a.6.9.1.5.8.2.e.f.6.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa. [2m] PTR pierre-GF62-7RE.local. (159)

      23:20:48.443993 IP6 truncated-ip6 - 8 bytes missing!(hlim 1, next-header UDP (17) payload length: 30) fe80::cc58:8b56:69f0:3e70.61412 > ff02::1:3.hostmon: UDP, length 22

      23:20:48.446589 IP truncated-ip - 8 bytes missing! (tos 0x0, ttl 64, id 12894, offset 0, flags [none], proto UDP (17), length 78)

          192.168.1.11.netbios-ns > 192.168.1.255.netbios-ns:

      >>> NBT UDP PACKET(137): QUERY; REQUEST; BROADCAST

      TrnID=0xED40

      OpCode=0

      NmFlags=0x11

      Rcode=0

      QueryCount=1

      AnswerCount=0

      AuthorityCount=0

      AddressRecCount=0

      QuestionRecords:

      Name=

      WARNING: Short packet. Try increasing the snap length

       

       

      23:20:48.446602 IP truncated-ip - 8 bytes missing! (tos 0x0, ttl 64, id 12895, offset 0, flags [none], proto UDP (17), length 78)

          192.168.1.11.netbios-ns > 192.168.1.255.netbios-ns:

      >>> NBT UDP PACKET(137): QUERY; REQUEST; BROADCAST

      TrnID=0xED44

      OpCode=0

      NmFlags=0x11

      Rcode=0

      QueryCount=1

      AnswerCount=0

      AuthorityCount=0

      AddressRecCount=0

      QuestionRecords:

      Name=

      WARNING: Short packet. Try increasing the snap length

       

       

      23:20:48.476815 IP6 (flowlabel 0x684f2, hlim 255, next-header UDP (17) payload length: 41) pierre-GF62-7RE.hostmon > ff02::1:3.hostmon: [bad udp cksum 0x7b92 -> 0x8083!] UDP, length 33

      23:20:48.567780 IP6 (flowlabel 0x604e6, hlim 255, next-header UDP (17) payload length: 167) pierre-GF62-7RE.mdns > ff02::fb.mdns: [bad udp cksum 0x7d07 -> 0x8096!] 0 [2q] [2n] ANY (QM)? 6.f.d.1.e.d.a.6.9.1.5.8.2.e.f.6.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa. ANY (QM)? pierre-GF62-7RE.local. ns: pierre-GF62-7RE.local. [2m] AAAA fe80::6fe2:8519:6ade:1df6, 6.f.d.1.e.d.a.6.9.1.5.8.2.e.f.6.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa. [2m] PTR pierre-GF62-7RE.local. (159)

      23:20:48.726840 IP6 (flowlabel 0x684f2, hlim 255, next-header UDP (17) payload length: 41) pierre-GF62-7RE.hostmon > ff02::1:3.hostmon: [bad udp cksum 0x7b92 -> 0x8083!] UDP, length 33

      23:20:48.818604 IP6 (flowlabel 0x604e6, hlim 255, next-header UDP (17) payload length: 167) pierre-GF62-7RE.mdns > ff02::fb.mdns: [bad udp cksum 0x7d07 -> 0x8096!] 0 [2q] [2n] ANY (QM)? 6.f.d.1.e.d.a.6.9.1.5.8.2.e.f.6.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa. ANY (QM)? pierre-GF62-7RE.local. ns: pierre-GF62-7RE.local. [2m] AAAA fe80::6fe2:8519:6ade:1df6, 6.f.d.1.e.d.a.6.9.1.5.8.2.e.f.6.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa. [2m] PTR pierre-GF62-7RE.local. (159)

      23:20:48.824125 IP6 (hlim 1, next-header Options (0) payload length: 76) pierre-GF62-7RE > ff02::16: HBH (rtalert: 0x0000) (padn) [icmp6 sum ok] ICMP6, multicast listener report v2, 3 group record(s) [gaddr ff02::1:3 to_ex { }] [gaddr ff02::fb to_ex { }] [gaddr ff02::1:ffde:1df6 to_ex { }]

      23:20:48.856140 IP6 truncated-ip6 - 8 bytes missing!(flowlabel 0x5b91b, hlim 255, next-header UDP (17) payload length: 69) pierre-GF62-7RE.mdns > ff02::fb.mdns: 0*- [0q] 1/0/0 pierre-GF62-7RE.local. (Cache flush) [2m] AAAA[|domain]

      23:20:49.019424 IP6 (flowlabel 0x604e6, hlim 255, next-header UDP (17) payload length: 155) pierre-GF62-7RE.mdns > ff02::fb.mdns: [bad udp cksum 0x7cfb -> 0x6515!] 0*- [0q] 2/0/0 6.f.d.1.e.d.a.6.9.1.5.8.2.e.f.6.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa. (Cache flush) [2m] PTR pierre-GF62-7RE.local., pierre-GF62-7RE.local. (Cache flush) [2m] AAAA fe80::6fe2:8519:6ade:1df6 (147)

      23:20:49.112118 IP6 (hlim 1, next-header Options (0) payload length: 56) pierre-GF62-7RE > ff02::16: HBH (rtalert: 0x0000) (padn) [icmp6 sum ok] ICMP6, multicast listener report v2, 2 group record(s) [gaddr ff02::1:3 to_ex { }] [gaddr ff02::fb to_ex { }]

      23:20:49.221207 IP6 (flowlabel 0x604e6, hlim 255, next-header UDP (17) payload length: 149) pierre-GF62-7RE.mdns > ff02::fb.mdns: [bad udp cksum 0x7cf5 -> 0x9d3e!] 0 [9q] PTR (QM)? _nfs._tcp.local. PTR (QM)? _ipp._tcp.local. PTR (QM)? _ipps._tcp.local. PTR (QM)? _ftp._tcp.local. PTR (QM)? _webdav._tcp.local. PTR (QM)? _webdavs._tcp.local. PTR (QM)? _sftp-ssh._tcp.local. PTR (QM)? _smb._tcp.local. PTR (QM)? _afpovertcp._tcp.local. (141)

      23:20:49.264576 IP6 truncated-ip6 - 8 bytes missing!(hlim 255, next-header ICMPv6 (58) payload length: 32) pierre-GF62-7RE > ff02::1:ffde:1df6: ICMP6, neighbor solicitation, length 32, who has pierre-GF62-7RE

      23:20:49.326221 IP (tos 0x10, ttl 128, id 0, offset 0, flags [none], proto UDP (17), length 328)

          0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from a0:c5:89:b5:42:30 (oui Unknown), length 300, xid 0xcee0c667, secs 3, Flags [none] (0x0000)

            Client-Ethernet-Address a0:c5:89:b5:42:30 (oui Unknown)

            Vendor-rfc1048 Extensions

              Magic Cookie 0x63825363

              DHCP-Message Option 53, length 1: Discover

              Hostname Option 12, length 15: "pierre-GF62-7RE"

              Parameter-Request Option 55, length 16:

                Subnet-Mask, BR, Time-Zone, Default-Gateway

                Domain-Name, Domain-Name-Server, Option 119, Hostname

                Netbios-Name-Server, Netbios-Scope, MTU, Classless-Static-Route

                NTP, Classless-Static-Route-Microsoft, Static-Route, Option 252

              END Option 255, length 0

              PAD Option 0, length 0, occurs 21

      23:20:49.468897 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.2 tell gateway, length 38

      23:20:49.883144 IP truncated-ip - 8 bytes missing! (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 576)

          gateway.bootps > 192.168.1.2.bootpc: BOOTP/DHCP, Reply, length 548, xid 0xcee0c667, Flags [none] (0x0000)

            Your-IP 192.168.1.2

            Client-Ethernet-Address a0:c5:89:b5:42:30 (oui Unknown)

            Vendor-rfc1048 Extensions

              Magic Cookie 0x63825363

              DHCP-Message Option 53, length 1: Offer

              Server-ID Option 54, length 4: gateway

              Lease-Time Option 51, length 4: 86400

              Subnet-Mask Option 1, length 4: 255.255.255.0

              Default-Gateway Option 3, length 4: gateway

              Domain-Name-Server Option 6, length 4: gateway

              END Option 255, length 0

              PAD Option 0, length 0, occurs 266

      23:20:50.082499 IP truncated-ip - 8 bytes missing! (tos 0x0, ttl 64, id 12899, offset 0, flags [none], proto UDP (17), length 78)

          192.168.1.11.netbios-ns > 192.168.1.255.netbios-ns:

      >>> NBT UDP PACKET(137): QUERY; REQUEST; BROADCAST

      TrnID=0xED44

      OpCode=0

      NmFlags=0x11

      Rcode=0

      QueryCount=1

      AnswerCount=0

      AuthorityCount=0

      AddressRecCount=0

      QuestionRecords:

      Name=

      WARNING: Short packet. Try increasing the snap length

       

       

      23:20:50.166293 IP6 (flowlabel 0x604e6, hlim 255, next-header UDP (17) payload length: 155) pierre-GF62-7RE.mdns > ff02::fb.mdns: [bad udp cksum 0x7cfb -> 0x6515!] 0*- [0q] 2/0/0 6.f.d.1.e.d.a.6.9.1.5.8.2.e.f.6.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa. (Cache flush) [2m] PTR pierre-GF62-7RE.local., pierre-GF62-7RE.local. (Cache flush) [2m] AAAA fe80::6fe2:8519:6ade:1df6 (147)

      23:20:50.287981 IP6 truncated-ip6 - 8 bytes missing!(hlim 255, next-header ICMPv6 (58) payload length: 32) pierre-GF62-7RE > ff02::1:ffde:1df6: ICMP6, neighbor solicitation, length 32, who has pierre-GF62-7RE

      23:20:51.222359 IP6 (flowlabel 0x604e6, hlim 255, next-header UDP (17) payload length: 149) pierre-GF62-7RE.mdns > ff02::fb.mdns: [bad udp cksum 0x7cf5 -> 0x9d3e!] 0 [9q] PTR (QM)? _nfs._tcp.local. PTR (QM)? _ipp._tcp.local. PTR (QM)? _ipps._tcp.local. PTR (QM)? _ftp._tcp.local. PTR (QM)? _webdav._tcp.local. PTR (QM)? _webdavs._tcp.local. PTR (QM)? _sftp-ssh._tcp.local. PTR (QM)? _smb._tcp.local. PTR (QM)? _afpovertcp._tcp.local. (141)

      23:20:52.061416 IP6 (flowlabel 0x1c1ef, hlim 255, next-header ICMPv6 (58) payload length: 8) pierre-GF62-7RE > ip6-allrouters: [icmp6 sum ok] ICMP6, router solicitation, length 8

      23:20:52.313110 IP6 (flowlabel 0x604e6, hlim 255, next-header UDP (17) payload length: 155) pierre-GF62-7RE.mdns > ff02::fb.mdns: [bad udp cksum 0x7cfb -> 0x6515!] 0*- [0q] 2/0/0 6.f.d.1.e.d.a.6.9.1.5.8.2.e.f.6.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa. (Cache flush) [2m] PTR pierre-GF62-7RE.local., pierre-GF62-7RE.local. (Cache flush) [2m] AAAA fe80::6fe2:8519:6ade:1df6 (147)

      23:20:53.108674 IP (tos 0x10, ttl 128, id 0, offset 0, flags [none], proto UDP (17), length 328)

          0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from a0:c5:89:b5:42:30 (oui Unknown), length 300, xid 0xcee0c667, secs 7, Flags [none] (0x0000)

            Client-Ethernet-Address a0:c5:89:b5:42:30 (oui Unknown)

            Vendor-rfc1048 Extensions

              Magic Cookie 0x63825363

              DHCP-Message Option 53, length 1: Discover

              Hostname Option 12, length 15: "pierre-GF62-7RE"

              Parameter-Request Option 55, length 16:

                Subnet-Mask, BR, Time-Zone, Default-Gateway

                Domain-Name, Domain-Name-Server, Option 119, Hostname

                Netbios-Name-Server, Netbios-Scope, MTU, Classless-Static-Route

                NTP, Classless-Static-Route-Microsoft, Static-Route, Option 252

              END Option 255, length 0

              PAD Option 0, length 0, occurs 21

      23:20:53.155331 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.2 tell gateway, length 38

      23:20:53.660597 IP truncated-ip - 8 bytes missing! (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 576)

          gateway.bootps > 192.168.1.2.bootpc: BOOTP/DHCP, Reply, length 548, xid 0xcee0c667, Flags [none] (0x0000)

            Your-IP 192.168.1.2

            Client-Ethernet-Address a0:c5:89:b5:42:30 (oui Unknown)

            Vendor-rfc1048 Extensions

              Magic Cookie 0x63825363

              DHCP-Message Option 53, length 1: Offer

              Server-ID Option 54, length 4: gateway

              Lease-Time Option 51, length 4: 86400

              Subnet-Mask Option 1, length 4: 255.255.255.0

              Default-Gateway Option 3, length 4: gateway

              Domain-Name-Server Option 6, length 4: gateway

              END Option 255, length 0

              PAD Option 0, length 0, occurs 266

      ^C

      61 packets captured

      61 packets received by filter

      0 packets dropped by kernel

        • 1. Re: wireless-AC 9260 truncated packets on ubuntu
          Intel Corporation
          This message was posted on behalf of Intel Corporation

          Hello ubuntuuser, 

          We understand you're experiencing issues while trying to connect using the Intel® Wireless-AC 9260 on Ubuntu*.

          Based on the outputs you've shared, it's possible that you may need to update to the latest firmware. 

          Your firmware: iwlwifi-9260-th-b0-jf-b0-33.ucode

          Firmware listed on iwlwifi support page: iwlwifi-9260-th-b0-jf-b0-34.618819.0.tgz

          To install this version you can run the following command: 

          # cp iwlwifi-*.ucode /lib/firmware

          It's also important to note that the Intel® Wireless-AC 9260 is supported on Linux* starting on kernel 4.14 and on. You're currently on 4.13.

          Related links and resources:

          NOTE: Any links provided for third party tools or sites are offered for your convenience and should not be viewed as an endorsement by Intel® of the content, products, or services offered there. We do not offer support for any third party tool mentioned here.

          - Linux* Support for Intel® Wireless Adapters
          - Linux* Wireless Wiki
          - Iwlwifi Bugs and support

          Best regards,
          Carlos A.