> 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?
> 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
> 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.
Thanks for your feedback.
