paziek
November 1st, 2008, 06:15 PM
Hello,
I've got 2 PCs using Ubuntu 8.04 and 7.10
I have been trying to connect them with cross ethernet cable, but for some reason they can't connect.
No response via HTTP, SSH, FTP, Samba
It worked before, but with Ubuntu 8.04 and Win XP.
Is there any howto on doing that kind of LAN? I don't have any routers or whatever, its a direct connection from eth0 to eth0.
Here is output of some tools, might be useful in finding whats the problem:
tcpdump -vv
sudo: unable to resolve host Lolita
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
16:48:49.844750 IP (tos 0x0, ttl 64, id 7514, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.34018 > 10.1.1.1.www: S, cksum 0x0dcf (correct), 2844323318:2844323318(0) win 5840 <mss 1460,sackOK,timestamp 61612 0,nop,wscale 5>
16:48:52.842973 IP (tos 0x0, ttl 64, id 7515, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.34018 > 10.1.1.1.www: S, cksum 0x0ae1 (correct), 2844323318:2844323318(0) win 5840 <mss 1460,sackOK,timestamp 62362 0,nop,wscale 5>
16:48:58.843019 IP (tos 0x0, ttl 64, id 7516, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.34018 > 10.1.1.1.www: S, cksum 0x0505 (correct), 2844323318:2844323318(0) win 5840 <mss 1460,sackOK,timestamp 63862 0,nop,wscale 5>
16:49:10.843112 IP (tos 0x0, ttl 64, id 7517, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.34018 > 10.1.1.1.www: S, cksum 0xf94c (correct), 2844323318:2844323318(0) win 5840 <mss 1460,sackOK,timestamp 66862 0,nop,wscale 5>
16:49:14.771132 IP (tos 0x0, ttl 64, id 33293, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.1.41126 > 10.1.1.2.www: S, cksum 0x24fe (correct), 773039403:773039403(0) win 5840 <mss 1460,sackOK,timestamp 360949 0,nop,wscale 5>
16:49:14.771263 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.www > 10.1.1.1.41126: S, cksum 0xddf2 (correct), 3499870299:3499870299(0) ack 773039404 win 5792 <mss 1460,sackOK,timestamp 67844 337699,nop,wscale 5>
16:49:15.843134 arp who-has 10.1.1.1 tell 10.1.1.2
16:49:15.843164 arp reply 10.1.1.1 is-at 00:30:4f:2d:b0:77 (oui Unknown)
16:49:15.975137 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.www > 10.1.1.1.41126: S, cksum 0xdcc5 (correct), 3499870299:3499870299(0) ack 773039404 win 5792 <mss 1460,sackOK,timestamp 68145 337699,nop,wscale 5>
16:49:34.843291 IP (tos 0x0, ttl 64, id 7518, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.34018 > 10.1.1.1.www: S, cksum 0xe1dc (correct), 2844323318:2844323318(0) win 5840 <mss 1460,sackOK,timestamp 72862 0,nop,wscale 5>
16:50:03.211215 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 258) 10.1.1.1.netbios-dgm > 10.255.255.255.netbios-dgm:
>>> NBT UDP PACKET(138) Res=0x110A ID=0xA3E IP=10 (0xa).1 (0x1).1 (0x1).1 (0x1) Port=138 (0x8a) Length=216 (0xd8) Res2=0x0
SourceName=LOLITA NameType=0x00 (Workstation)
DestName=
WARNING: Short packet. Try increasing the snap length
16:50:03.211249 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 235) 10.1.1.1.netbios-dgm > 10.255.255.255.netbios-dgm:
>>> NBT UDP PACKET(138) Res=0x110A ID=0xA3F IP=10 (0xa).1 (0x1).1 (0x1).1 (0x1) Port=138 (0x8a) Length=193 (0xc1) Res2=0x0
SourceName=LOLITA NameType=0x00 (Workstation)
DestName=
WARNING: Short packet. Try increasing the snap length
16:50:22.843662 IP (tos 0x0, ttl 64, id 7519, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.34018 > 10.1.1.1.www: S, cksum 0xb2fc (correct), 2844323318:2844323318(0) win 5840 <mss 1460,sackOK,timestamp 84862 0,nop,wscale 5>
16:50:27.843680 arp who-has 10.1.1.1 tell 10.1.1.2
16:50:27.843706 arp reply 10.1.1.1 is-at 00:30:4f:2d:b0:77 (oui Unknown)
15 packets captured
15 packets received by filter
0 packets dropped by kernel
ping 10.1.1.2
PING 10.1.1.2 (10.1.1.2) 56(84) bytes of data.
--- 10.1.1.2 ping statistics ---
44 packets transmitted, 0 received, 100% packet loss, time 42999ms
arping 10.1.1.2
WARNING: interface is ignored: Operation not permitted
ARPING 10.1.1.2 from 10.1.1.1 eth0
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 1.232ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.625ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.628ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.627ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.630ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.629ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.627ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.625ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.629ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.631ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.626ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.628ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.633ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.636ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.638ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.630ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.627ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.719ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.627ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.627ms
Sent 20 probes (1 broadcast(s))
Received 20 response(s)
ifconfig
eth0 Link encap:Ethernet HWaddr 00:30:4f:2d:b0:77
inet addr:10.1.1.1 Bcast:10.255.255.255 Mask:255.0.0.0
inet6 addr: fe80::230:4fff:fe2d:b077/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:11235 errors:0 dropped:0 overruns:0 frame:0
TX packets:2135 errors:0 dropped:0 overruns:0 carrier:0
collisions:1089 txqueuelen:1000
RX bytes:3937217 (3.7 MB) TX bytes:216287 (211.2 KB)
Interrupt:16 Base address:0xec00
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:888 errors:0 dropped:0 overruns:0 frame:0
TX packets:888 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:285079 (278.3 KB) TX bytes:285079 (278.3 KB)
Second PC has more or less the same ifconfig output, just the last char on MAC is different, and IP is 10.1.1.2
iptables are empty on both PCs (via sudo iptables -F)
Thanks in advance for any help,
Paziek.
I've got 2 PCs using Ubuntu 8.04 and 7.10
I have been trying to connect them with cross ethernet cable, but for some reason they can't connect.
No response via HTTP, SSH, FTP, Samba
It worked before, but with Ubuntu 8.04 and Win XP.
Is there any howto on doing that kind of LAN? I don't have any routers or whatever, its a direct connection from eth0 to eth0.
Here is output of some tools, might be useful in finding whats the problem:
tcpdump -vv
sudo: unable to resolve host Lolita
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
16:48:49.844750 IP (tos 0x0, ttl 64, id 7514, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.34018 > 10.1.1.1.www: S, cksum 0x0dcf (correct), 2844323318:2844323318(0) win 5840 <mss 1460,sackOK,timestamp 61612 0,nop,wscale 5>
16:48:52.842973 IP (tos 0x0, ttl 64, id 7515, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.34018 > 10.1.1.1.www: S, cksum 0x0ae1 (correct), 2844323318:2844323318(0) win 5840 <mss 1460,sackOK,timestamp 62362 0,nop,wscale 5>
16:48:58.843019 IP (tos 0x0, ttl 64, id 7516, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.34018 > 10.1.1.1.www: S, cksum 0x0505 (correct), 2844323318:2844323318(0) win 5840 <mss 1460,sackOK,timestamp 63862 0,nop,wscale 5>
16:49:10.843112 IP (tos 0x0, ttl 64, id 7517, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.34018 > 10.1.1.1.www: S, cksum 0xf94c (correct), 2844323318:2844323318(0) win 5840 <mss 1460,sackOK,timestamp 66862 0,nop,wscale 5>
16:49:14.771132 IP (tos 0x0, ttl 64, id 33293, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.1.41126 > 10.1.1.2.www: S, cksum 0x24fe (correct), 773039403:773039403(0) win 5840 <mss 1460,sackOK,timestamp 360949 0,nop,wscale 5>
16:49:14.771263 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.www > 10.1.1.1.41126: S, cksum 0xddf2 (correct), 3499870299:3499870299(0) ack 773039404 win 5792 <mss 1460,sackOK,timestamp 67844 337699,nop,wscale 5>
16:49:15.843134 arp who-has 10.1.1.1 tell 10.1.1.2
16:49:15.843164 arp reply 10.1.1.1 is-at 00:30:4f:2d:b0:77 (oui Unknown)
16:49:15.975137 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.www > 10.1.1.1.41126: S, cksum 0xdcc5 (correct), 3499870299:3499870299(0) ack 773039404 win 5792 <mss 1460,sackOK,timestamp 68145 337699,nop,wscale 5>
16:49:34.843291 IP (tos 0x0, ttl 64, id 7518, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.34018 > 10.1.1.1.www: S, cksum 0xe1dc (correct), 2844323318:2844323318(0) win 5840 <mss 1460,sackOK,timestamp 72862 0,nop,wscale 5>
16:50:03.211215 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 258) 10.1.1.1.netbios-dgm > 10.255.255.255.netbios-dgm:
>>> NBT UDP PACKET(138) Res=0x110A ID=0xA3E IP=10 (0xa).1 (0x1).1 (0x1).1 (0x1) Port=138 (0x8a) Length=216 (0xd8) Res2=0x0
SourceName=LOLITA NameType=0x00 (Workstation)
DestName=
WARNING: Short packet. Try increasing the snap length
16:50:03.211249 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 235) 10.1.1.1.netbios-dgm > 10.255.255.255.netbios-dgm:
>>> NBT UDP PACKET(138) Res=0x110A ID=0xA3F IP=10 (0xa).1 (0x1).1 (0x1).1 (0x1) Port=138 (0x8a) Length=193 (0xc1) Res2=0x0
SourceName=LOLITA NameType=0x00 (Workstation)
DestName=
WARNING: Short packet. Try increasing the snap length
16:50:22.843662 IP (tos 0x0, ttl 64, id 7519, offset 0, flags [DF], proto TCP (6), length 60) 10.1.1.2.34018 > 10.1.1.1.www: S, cksum 0xb2fc (correct), 2844323318:2844323318(0) win 5840 <mss 1460,sackOK,timestamp 84862 0,nop,wscale 5>
16:50:27.843680 arp who-has 10.1.1.1 tell 10.1.1.2
16:50:27.843706 arp reply 10.1.1.1 is-at 00:30:4f:2d:b0:77 (oui Unknown)
15 packets captured
15 packets received by filter
0 packets dropped by kernel
ping 10.1.1.2
PING 10.1.1.2 (10.1.1.2) 56(84) bytes of data.
--- 10.1.1.2 ping statistics ---
44 packets transmitted, 0 received, 100% packet loss, time 42999ms
arping 10.1.1.2
WARNING: interface is ignored: Operation not permitted
ARPING 10.1.1.2 from 10.1.1.1 eth0
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 1.232ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.625ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.628ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.627ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.630ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.629ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.627ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.625ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.629ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.631ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.626ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.628ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.633ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.636ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.638ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.630ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.627ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.719ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.627ms
Unicast reply from 10.1.1.2 [00:11:85:86:E7:BC] 0.627ms
Sent 20 probes (1 broadcast(s))
Received 20 response(s)
ifconfig
eth0 Link encap:Ethernet HWaddr 00:30:4f:2d:b0:77
inet addr:10.1.1.1 Bcast:10.255.255.255 Mask:255.0.0.0
inet6 addr: fe80::230:4fff:fe2d:b077/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:11235 errors:0 dropped:0 overruns:0 frame:0
TX packets:2135 errors:0 dropped:0 overruns:0 carrier:0
collisions:1089 txqueuelen:1000
RX bytes:3937217 (3.7 MB) TX bytes:216287 (211.2 KB)
Interrupt:16 Base address:0xec00
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:888 errors:0 dropped:0 overruns:0 frame:0
TX packets:888 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:285079 (278.3 KB) TX bytes:285079 (278.3 KB)
Second PC has more or less the same ifconfig output, just the last char on MAC is different, and IP is 10.1.1.2
iptables are empty on both PCs (via sudo iptables -F)
Thanks in advance for any help,
Paziek.