pingen - >ja Internet -> nein
joerg.70 at web.de
joerg.70 at web.de
Mon Feb 14 10:53:14 CST 2005
Hallo Zusammen,
ich habe folgendes Problem:
Meine Internetverbindung funktioniert bei mir zuhause plötzlich nicht mehr! D.h. die Seite wird nicht aufgebaut (timeout),
wenn ich die Adresse eingebe oder ich einen Google-Link anklicke.
Ich habe ein Notebook auf dem WindowsXP und Ubuntu Warty Universe installiert ist.
An der Fachhochschule funktioniert die Internetverbindung mit Ubuntu! (DHCP)
Unter Knoppix oder WindowsXP habe ich auch zuhause eine normale Internetverbinung
Diese läuft läuft über einen Fibeline Internet Breitband Router (mit integierten Switches und DHCP)
- die Hosts kann ich anpingen ( google, web.de, yahoo, heise.de, ... )
- sporadisch bekomme ich eine Internetverbindung, wenn ich den Host vorher angepingt habe.
- ich habe verschiedene Browser ausprobiert: firefox 0.93, mozilla 1.7.3, epiphany 1.4.4, konqueror 3.2.2
- wenn ich mit Ethereal an Port 80 horche, findet bis zum Timeout folgende Kommunikation statt:
1. Ethereal/tcpdump (Ausschnitt):
- frame 6: server sendet "[TCP Previous segment lost] www > 38983 [FIN, ACK] "
- frame 8: server sendet " HTTP/1.1 302 Found "
2. Ethereal/Tcpdump (Ausschnitt):
- frame 1-8: "[SYN]"
{vollständige tcpdumps siehe unten}
- Vermutung: bei der Installation/Deinstalltion ist etwas schiefgelaufen
- Da Ping Pakete der Schicht 3 versendet und das ICMP - Protokoll ausführt, müsste
das Problem ab der 4. Schicht oder höher zu suchen sein.
1. Ethereal/tcpdump firefox -> www.web.de
No. Time Source Destination Protocol Info
1 0.000000 192.168.1.2 217.72.195.42 TCP 38983 > www [SYN] Seq=0 Ack=0 Win=5840 Len=0 MSS=1460 TSV=15121695 TSER=0 WS=2
Frame 1 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 217.72.195.42 (217.72.195.42)
Transmission Control Protocol, Src Port: 38983 (38983), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0
No. Time Source Destination Protocol Info
2 0.035961 217.72.195.42 192.168.1.2 TCP www > 38983 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=1094361351 TSER=15121695 WS=0
Frame 2 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 00:e0:98:a0:05:22, Dst: 08:00:46:d3:07:6c
Internet Protocol, Src Addr: 217.72.195.42 (217.72.195.42), Dst Addr: 192.168.1.2 (192.168.1.2)
Transmission Control Protocol, Src Port: www (80), Dst Port: 38983 (38983), Seq: 0, Ack: 1, Len: 0
No. Time Source Destination Protocol Info
3 0.036007 192.168.1.2 217.72.195.42 TCP 38983 > www [ACK] Seq=1 Ack=1 Win=5840 Len=0 TSV=15121731 TSER=1094361351
Frame 3 (66 bytes on wire, 66 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 217.72.195.42 (217.72.195.42)
Transmission Control Protocol, Src Port: 38983 (38983), Dst Port: www (80), Seq: 1, Ack: 1, Len: 0
No. Time Source Destination Protocol Info
4 0.036471 192.168.1.2 217.72.195.42 HTTP GET / HTTP/1.1
Frame 4 (525 bytes on wire, 525 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 217.72.195.42 (217.72.195.42)
Transmission Control Protocol, Src Port: 38983 (38983), Dst Port: www (80), Seq: 1, Ack: 1, Len: 459
Hypertext Transfer Protocol
No. Time Source Destination Protocol Info
5 0.084744 217.72.195.42 192.168.1.2 TCP www > 38983 [ACK] Seq=1 Ack=460 Win=6432 Len=0 TSV=1094361356 TSER=15121732
Frame 5 (66 bytes on wire, 66 bytes captured)
Ethernet II, Src: 00:e0:98:a0:05:22, Dst: 08:00:46:d3:07:6c
Internet Protocol, Src Addr: 217.72.195.42 (217.72.195.42), Dst Addr: 192.168.1.2 (192.168.1.2)
Transmission Control Protocol, Src Port: www (80), Dst Port: 38983 (38983), Seq: 1, Ack: 460, Len: 0
No. Time Source Destination Protocol Info
6 0.086606 217.72.195.42 192.168.1.2 TCP [TCP Previous segment lost] www > 38983 [FIN, ACK] Seq=529 Ack=460 Win=6432 Len=0 TSV=1094361356 TSER=15121732
Frame 6 (66 bytes on wire, 66 bytes captured)
Ethernet II, Src: 00:e0:98:a0:05:22, Dst: 08:00:46:d3:07:6c
Internet Protocol, Src Addr: 217.72.195.42 (217.72.195.42), Dst Addr: 192.168.1.2 (192.168.1.2)
Transmission Control Protocol, Src Port: www (80), Dst Port: 38983 (38983), Seq: 529, Ack: 460, Len: 0
No. Time Source Destination Protocol Info
7 0.086625 192.168.1.2 217.72.195.42 TCP [TCP Dup ACK 3#1] 38983 > www [ACK] Seq=460 Ack=1 Win=5840 Len=0 TSV=15121782 TSER=1094361356 SLE=4177059754 SRE=4177059755
Frame 7 (78 bytes on wire, 78 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 217.72.195.42 (217.72.195.42)
Transmission Control Protocol, Src Port: 38983 (38983), Dst Port: www (80), Seq: 460, Ack: 1, Len: 0
No. Time Source Destination Protocol Info
8 0.091353 217.72.195.42 192.168.1.2 HTTP HTTP/1.1 302 Found (text/html)
Frame 8 (594 bytes on wire, 594 bytes captured)
Ethernet II, Src: 00:e0:98:a0:05:22, Dst: 08:00:46:d3:07:6c
Internet Protocol, Src Addr: 217.72.195.42 (217.72.195.42), Dst Addr: 192.168.1.2 (192.168.1.2)
Transmission Control Protocol, Src Port: www (80), Dst Port: 38983 (38983), Seq: 1, Ack: 460, Len: 528
Hypertext Transfer Protocol
Line-based text data: text/html
No. Time Source Destination Protocol Info
9 0.091369 192.168.1.2 217.72.195.42 TCP 38983 > www [ACK] Seq=460 Ack=530 Win=6912 Len=0 TSV=15121787 TSER=1094361356
Frame 9 (66 bytes on wire, 66 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 217.72.195.42 (217.72.195.42)
Transmission Control Protocol, Src Port: 38983 (38983), Dst Port: www (80), Seq: 460, Ack: 530, Len: 0
No. Time Source Destination Protocol Info
10 0.091571 192.168.1.2 217.72.195.42 TCP 38983 > www [FIN, ACK] Seq=460 Ack=530 Win=6912 Len=0 TSV=15121787 TSER=1094361356
Frame 10 (66 bytes on wire, 66 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 217.72.195.42 (217.72.195.42)
Transmission Control Protocol, Src Port: 38983 (38983), Dst Port: www (80), Seq: 460, Ack: 530, Len: 0
No. Time Source Destination Protocol Info
11 0.129027 217.72.195.42 192.168.1.2 TCP www > 38983 [ACK] Seq=530 Ack=461 Win=6432 Len=0 TSV=1094361360 TSER=15121787
Frame 11 (66 bytes on wire, 66 bytes captured)
Ethernet II, Src: 00:e0:98:a0:05:22, Dst: 08:00:46:d3:07:6c
Internet Protocol, Src Addr: 217.72.195.42 (217.72.195.42), Dst Addr: 192.168.1.2 (192.168.1.2)
Transmission Control Protocol, Src Port: www (80), Dst Port: 38983 (38983), Seq: 530, Ack: 461, Len: 0
No. Time Source Destination Protocol Info
12 0.286057 192.168.1.2 171.181.98.192 TCP 38984 > www [SYN] Seq=0 Ack=0 Win=5840 Len=0 MSS=1460 TSV=15121981 TSER=0 WS=2
Frame 12 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 171.181.98.192 (171.181.98.192)
Transmission Control Protocol, Src Port: 38984 (38984), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0
No. Time Source Destination Protocol Info
13 3.284673 192.168.1.2 171.181.98.192 TCP 38984 > www [SYN] Seq=0 Ack=0 Win=23360 Len=0 MSS=1460 TSV=15124981 TSER=0 WS=2
Frame 13 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 171.181.98.192 (171.181.98.192)
Transmission Control Protocol, Src Port: 38984 (38984), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0
No. Time Source Destination Protocol Info
14 9.283763 192.168.1.2 171.181.98.192 TCP 38984 > www [SYN] Seq=0 Ack=0 Win=23360 Len=0 MSS=1460 TSV=15130981 TSER=0 WS=2
Frame 14 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 171.181.98.192 (171.181.98.192)
Transmission Control Protocol, Src Port: 38984 (38984), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0
No. Time Source Destination Protocol Info
15 21.281935 192.168.1.2 171.181.98.192 TCP 38984 > www [SYN] Seq=0 Ack=0 Win=23360 Len=0 MSS=1460 TSV=15142981 TSER=0 WS=2
Frame 15 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 171.181.98.192 (171.181.98.192)
Transmission Control Protocol, Src Port: 38984 (38984), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0
No. Time Source Destination Protocol Info
16 45.278295 192.168.1.2 171.181.98.192 TCP 38984 > www [SYN] Seq=0 Ack=0 Win=23360 Len=0 MSS=1460 TSV=15166981 TSER=0 WS=2
Frame 16 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 171.181.98.192 (171.181.98.192)
Transmission Control Protocol, Src Port: 38984 (38984), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0
No. Time Source Destination Protocol Info
17 93.270992 192.168.1.2 171.181.98.192 TCP 38984 > www [SYN] Seq=0 Ack=0 Win=23360 Len=0 MSS=1460 TSV=15214981 TSER=0 WS=2
Frame 17 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 171.181.98.192 (171.181.98.192)
Transmission Control Protocol, Src Port: 38984 (38984), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0
2. Ethereal/tcpdump firefox -> www.web.de
No. Time Source Destination Protocol Info
1 0.000000 192.168.1.2 171.181.98.192 TCP 40689 > www [SYN] Seq=0 Ack=0 Win=5840 Len=0 MSS=1460 TSV=19361882 TSER=0 WS=2
Frame 1 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 171.181.98.192 (171.181.98.192)
Transmission Control Protocol, Src Port: 40689 (40689), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0
No. Time Source Destination Protocol Info
2 2.998543 192.168.1.2 171.181.98.192 TCP 40689 > www [SYN] Seq=0 Ack=0 Win=23360 Len=0 MSS=1460 TSV=19364882 TSER=0 WS=2
Frame 2 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 171.181.98.192 (171.181.98.192)
Transmission Control Protocol, Src Port: 40689 (40689), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0
No. Time Source Destination Protocol Info
3 7.849811 192.168.1.2 171.181.98.192 TCP 40672 > www [SYN] Seq=0 Ack=0 Win=5840 Len=0 MSS=1460 TSV=19369734 TSER=0 WS=2
Frame 3 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 171.181.98.192 (171.181.98.192)
Transmission Control Protocol, Src Port: 40672 (40672), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0
No. Time Source Destination Protocol Info
4 8.997635 192.168.1.2 171.181.98.192 TCP 40689 > www [SYN] Seq=0 Ack=0 Win=23360 Len=0 MSS=1460 TSV=19370882 TSER=0 WS=2
Frame 4 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 171.181.98.192 (171.181.98.192)
Transmission Control Protocol, Src Port: 40689 (40689), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0
No. Time Source Destination Protocol Info
5 20.995820 192.168.1.2 171.181.98.192 TCP 40689 > www [SYN] Seq=0 Ack=0 Win=23360 Len=0 MSS=1460 TSV=19382882 TSER=0 WS=2
Frame 5 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 171.181.98.192 (171.181.98.192)
Transmission Control Protocol, Src Port: 40689 (40689), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0
No. Time Source Destination Protocol Info
6 44.992165 192.168.1.2 171.181.98.192 TCP 40689 > www [SYN] Seq=0 Ack=0 Win=23360 Len=0 MSS=1460 TSV=19406882 TSER=0 WS=2
Frame 6 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 171.181.98.192 (171.181.98.192)
Transmission Control Protocol, Src Port: 40689 (40689), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0
No. Time Source Destination Protocol Info
7 55.842516 192.168.1.2 171.181.98.192 TCP 40672 > www [SYN] Seq=0 Ack=0 Win=23360 Len=0 MSS=1460 TSV=19417734 TSER=0 WS=2
Frame 7 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 171.181.98.192 (171.181.98.192)
Transmission Control Protocol, Src Port: 40672 (40672), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0
No. Time Source Destination Protocol Info
8 92.984869 192.168.1.2 171.181.98.192 TCP 40689 > www [SYN] Seq=0 Ack=0 Win=23360 Len=0 MSS=1460 TSV=19454882 TSER=0 WS=2
Frame 8 (74 bytes on wire, 74 bytes captured)
Ethernet II, Src: 08:00:46:d3:07:6c, Dst: 00:e0:98:a0:05:22
Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 171.181.98.192 (171.181.98.192)
Transmission Control Protocol, Src Port: 40689 (40689), Dst Port: www (80), Seq: 0, Ack: 0, Len: 0