On 10.03.2008, at 18:26, Monkey D. Luffy wrote:
Your computer should gather that 192.168.2.1 is your router's
ethernet
from the broadcasts it listens to. Thats also a way of learning ARP
tables.
So that means that I have (at least) a problem in my computer? Since
it doesn't learn who the router is from the IGMPs packets:
86 1403.785840 AsustekC_ba:f5:a8 Broadcast ARP
Who has 192.168.2.1? Tell 192.168.2.100
87 1404.785886 AsustekC_ba:f5:a8 Broadcast ARP
Who has 192.168.2.1? Tell 192.168.2.100
88 1407.786026 AsustekC_ba:f5:a8 Broadcast ARP
Who has 192.168.2.1? Tell 192.168.2.100
89 1408.332413 192.168.2.1 224.0.0.1 IGMP
V2 Membership Query
90 1408.586063 192.168.2.100 224.0.0.251 IGMP
V2 Membership Report
91 1408.786070 AsustekC_ba:f5:a8 Broadcast ARP
Who has 192.168.2.1? Tell 192.168.2.100
92 1409.786118 AsustekC_ba:f5:a8 Broadcast ARP
Who has 192.168.2.1? Tell 192.168.2.100
93 1412.493245 192.168.2.1 224.0.0.9 IGMP
V2 Membership Report
94 1412.786256 AsustekC_ba:f5:a8 Broadcast ARP
Who has 192.168.2.1? Tell 192.168.2.100
95 1413.786301 AsustekC_ba:f5:a8 Broadcast ARP
Who has 192.168.2.1? Tell 192.168.2.100
96 1414.786348 AsustekC_ba:f5:a8 Broadcast ARP
Who has 192.168.2.1? Tell 192.168.2.100
97 1416.138415 192.168.2.100 239.255.67.250 IGMP
V2 Membership Report
98 1417.786490 AsustekC_ba:f5:a8 Broadcast ARP
Who has 192.168.2.1? Tell 192.168.2.100
Can there something be wrong with the mask used?
Could be. What is the mask used?
However its odd that the router doesnt answer a specific ARP request
targeted to him.
So that means my router is indeed brain dead.
Now to the tricky questions. Where did you capture this?
I captured it on my computer, 192.168.10.100
192.168.10.100? thats not on the same subnet usually
Maybe the router answered but your computer didnt get the answer
because the switch in the middle is messed up or so?
The cable modem connects to my router. From my router 2 RJ45 cables
connect to 2 computers. Both (Linux) computers fail network connection
at the same time.
I don't use any switch hardware device.
I have to say that when my NIC connects directly to the cable modem
(no router in the middle) I don't have any problems with my network
connection.
