dmesg:
ipt_tcpmss_target: bad length (84 bytes)
ipt_tcpmss_target: bad length (84 bytes)
ipt_tcpmss_target: bad length (84 bytes)
ipt_tcpmss_target: bad length (84 bytes)
ipt_tcpmss_target: bad length (84 bytes)
ipt_tcpmss_target: bad length (84 bytes)
pojawia mi się ostatnio, znalazłem troche opisów na listach zagranicznych
Laurens van Alphen wrote:
> Today, I received this kernel log entry via e-mail:
>
> Aug 17 14:19:17 filter0 kernel: ipt_tcpmss_target: bad length (472
> bytes)
>
> Using Google, I could not find a single useful meaning of this message.
Here's the comment from the source code which explains it:
/* Since it passed flags test in tcp match, we know it is is
not a fragment, and has data >= tcp header length. SYN
packets should not contain data: if they did, then we risk
running over MTU, sending Frag Needed and breaking things
badly. --RR */
In other words, SYN packets cannot have data, so the total length
of the packet must be the same as the tcp header length, otherwise
it is a bad length.
--
Philip Craig - philipc@snapgear.com - http://www.SnapGear.com
SnapGear - Custom Embedded Solutions and Security Appliances
pisze szczerze że niezbyt wiem o co chodzi ;]
MTU = 1492
MTU is optimized for PPoE DSL broadband. If not, consider raising MTU to 1500 for optimal throughput.
MSS = 1452
MSS is optimized for PPPoE DSL broadband. If not, consider raising your MTU value.
Default TCP Receive Window (RWIN) = 5808
RWIN Scaling (RFC1323) = 0 bits
Unscaled TCP Receive Window = 5808
RWIN seems to be set to a very small number. If you're on a broadband connection, consider using a larger value.
RWIN is a multiple of MSS
Other RWIN values that might work well with your current MTU/MSS:
511104 (MSS x 44 * scale factor of
255552 (MSS x 44 * scale factor of 4)
127776 (MSS x 44 * scale factor of 2)
63888 (MSS x 44)
bandwidth * delay product (Note this is not a speed test):
Your TCP Window limits you to: 232.32 kbps (29.04 KBytes/s) @ 200ms
Your TCP Window limits you to: 92.928 kbps (11.616 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband.
MTU Discovery (RFC1191) = ON
Time to live left = 56 hops
TTL value is ok.
Timestamps (RFC1323) = ON
Note: Timestamps add 12 bytes to the TCP header of each packet, reducing the space available for useful data.
Selective Acknowledgements (RFC2018) = OFF
IP type of service field (RFC1349) = 00000000 (0)
A z eaglestata dostaję coś takiego:
Driver version 2.3.2 Chipset: Eagle0
Vendor ID : 0x1110 Product ID : 0x9021 Rev: 0x500b
USB Bus : 001 USB Device : 007 Dbg mask: 0x0
Ethernet Interface : eth1
MAC: 00:60:4c:62:57:04
Tx Rate 320 Rx Rate 7456
FEC 44367 Margin 6 Atten 27 dB
VID-CPE 0 VID-CO 28 HEC 0
VPI 0 VCI 35 Delin GOOD
Cells Tx 31683857 Cells Rx 78219992
Pkts Tx 4639733 Pkts Rx 5032654
OAM 0 Bad VPI 2 Bad CRC 226
Oversiz. 476
czeska republika to i czeski film z internetem;]
to co wkleiłeś wygląda dobrze
1.napisz czy masz jakieś firewalle/antywirusy 2. instalowałeś najnowsze sterowniki od karty sieciowej ? 3. routerów ani żadnych modemów nie masz? 4. wklej wynik polecenia ping na wp.pl 5. zobacz jaki masz transfer podczas ściągania tego pliku http://kernel.org/pub/linux/kernel/v2.6/li....6.28.7.tar.bz2 6. próbowałeś podłączyć innego laptopa i sprawdzić czy internet zachowuje się tak samo ?
1. zapora windows wyłączona/ antywirys - AVG free edition 2. Ściągnąłem sterownik ze strony via, ale tutaj jest problem. Pamiętam, że wcześniej karta chodziła jako Via 10/100 fast ethernet Rhine II, a teraz windows po instalce wykrywa ją jako Via fast ethernet, nie wiem czemu 3. żadnych wynalazków 4. Microsoft Windows XP [Wersja 5.1.2600] © Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\cobra>ping 89.103.42.98
Badanie 89.103.42.98 z użyciem 32 bajtów danych:
Odpowiedź z 89.103.42.98: bajtów=32 czas<1 ms TTL=128 Odpowiedź z 89.103.42.98: bajtów=32 czas<1 ms TTL=128 Odpowiedź z 89.103.42.98: bajtów=32 czas<1 ms TTL=128 Odpowiedź z 89.103.42.98: bajtów=32 czas<1 ms TTL=128
Statystyka badania ping dla 89.103.42.98: Pakiety: Wysłane = 4, Odebrane = 4, Utracone = 0 (0% straty), Szacunkowy czas błądzenia pakietów w millisekundach: Minimum = 0 ms, Maksimum = 0 ms, Czas średni = 0 ms
C:\Documents and Settings\cobra> 5. Transfer cały czas max 15 kb/s 6.Niestety jeszcze nie próbowałem
Mam wrażenie , że cały czas jest problem albo z kartą , albo z usługami windows użyłem dwóch programów i takie są rezultaty
Awatch
1.network adapters Adapter Name {7DC76210-4C6B-414B-8D0D-B148B417D152} Description Karta Fast Ethernet zgodna z VIA #2 - Sterownik miniport Harmonogramu pakietów Hardware Address 00-13-D3-A1-56-B6 Adapter Index 0x00000002 Adapter Type Ethernet DHCP Enabled Yes IP Addresses 89.103.42.98 (255.255.255.0) Default Gateway 89.103.42.1 DHCP Server 10.196.0.1 WINS Enabled No Primary WINS Server 0.0.0.0 Secondary WINS Server 0.0.0.0 DHCP Lease Obtained At 2009-03-16 15:49:40 DHCP Lease Expires At 2009-03-16 21:04:26 IP Address Auto-Configuration (APIPA) Enabled IP address auto-configured by APIPA No DNS Servers 213.46.172.36, 213.46.172.37 Maximum Transmission Unit (MTU) 1500 Interface Speed (Bits Per Second) 100Â 000Â 000 Enabled/Disabled Enabled Operational Status Operational Received Data 5Â 318Â 676 Bytes Sent Data 418Â 294 Bytes Calculated Speed Of Received Data 1 KB/s Calculated Speed Of Sent Data 0 KB/s Received Unicast Packets 3Â 707 Sent Unicast Packets 2Â 725 Received Non-Unicast Packets 16Â 845 Sent Non-Unicast Packets 81 Incoming packets that were discarded because of errors 0 Outgoing packets that were discarded because of errors 0 Incoming packets that were discarded without error 0 Outgoing packets that were discarded without error 0 Incoming packets that were discarded because of unknown protocol 0 Output Queue Length 0
2. tcp/udp stat TCP Statistics Retransmission time-out (RTO) algorithm Van Jacobson's Algorithm Minimum retransmission time-out value (In Milliseconds) 300 Maximum retransmission time-out value (In Milliseconds) 120Â 000 Maximum number of connections 4Â 294Â 967Â 295 Number of active opens 310 Number of passive opens 156 Number of failed connection attempts 0 Number of established connections that have been reset 20 Number of currently established connections 4 Number of segments received 13Â 608 Number of segments transmitted 12Â 617 Number of segments retransmitted 11 Number of errors received 0 Number of segments transmitted with the reset flag set 138 Cumulative number of connections 17 UDP Statistics Number of datagrams received 168 Number of datagrams transmitted 165 number of received datagrams that were discarded because of invalid port 68 Number of erroneous datagrams that were received 0 Number of entries in the UDP listener table 15
3.ip stat
IP Forwarding Enabled Default initial time to live (TTL) value 128 Number of datagrams received 13Â 825 Number of datagrams received with header error 0 number of datagrams received with address error 2 Number of datagrams received with unknown protocol 0 Number of datagrams forwarded 0 Number of received datagrams discarded 1 Number of received datagrams delivered 13Â 822 Number of outgoing datagrams that IP is requested to transmit 12Â 820 Number of outgoing datagrams discarded 0 Number of transmitted datagrams discarded 0 number of datagrams with no route to the destination IP address 0 Amount of time allowed for all pieces of a fragmented datagram to arrive 60 Number of datagrams that were required re-assembly 0 Number of datagrams that were successfully reassembled 0 Number of datagrams that failed to reassembled 0 Number of datagrams that were fragmented successfully 0 Datagrams that have not been fragmented because the IP header specifies no fragmentation 0 Number of fragments created 0 Number of interfaces 2 Number of IP addresses associated with this computer 2 Number of routes in the IP routing table 7
4. icmp stat
Number of messages 13 20 Number of errors 0 0 Number of destination-unreachable messages 0 4 Number of time-to-live (TTL) exceeded messages 0 0 Number of parameter-problem messages 0 0 Number of source quench messages 0 0 Number of redirect messages 0 0 Number of echo requests received 6 7 Number of echo replies 7 6 Number of time-stamp requests 0 0 Number of time-stamp replies 0 0 Number of address mask requests 0 0 Number of address mask responses 0 0
5. general
Host Name xxx-dfd88fced44 Domain Name DNS Servers 213.46.172.36, 213.46.172.37 Node Type Unknown DHCP Scope Name Routing Disabled ARP Proxy Disabled DNS Disabled
i drugi
Dhcp explorer
Adapter - 00:13:D3:A1:56:B6
DHCP Server 10.196.0.1 Subnet Mask 255.255.255.0 DNS Server 213.46.172.36 213.46.172.37 Gateway Address 89.103.42.1 IP Lease Time Monday, March 16, 2009 21:30:54
Pozdrawiam
zanotowane.pldoc.pisz.plpdf.pisz.plwpserwis.htw.pl
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