i issued command " show cable host access-group" at ubr 10012 and found a lot of cpe with ip address 0.0.0.0. i use the command( clear cable host xxx) to remove 0.0.0.0 entry. But dose anyone know the reason why ? how to remove it more efficiency ?
uBR-10K#show cable host access-group
0016.cbf6.1e7f 0.0.0.0 host
0017.4239.655a 0.0.0.0 host
00e0.0609.0038 22.214.171.124 host
0002.8adf.de7c 0.0.0.0 host
000c.6e64.a4f9 0.0.0.0 host
0030.0403.fd5d 126.96.36.199 host
0090.0b04.2ae2 188.8.131.52 host
0000.0100.5adc 184.108.40.206 host
0009.2ded.d4b7 0.0.0.0 host
000a.7998.591d 0.0.0.0 host
000d.60e4.b091 0.0.0.0 host
0013.0220.3ff7 0.0.0.0 host
0016.4116.9ff1 0.0.0.0 host
0016.ec55.5776 0.0.0.0 host
0018.f35a.8b03 0.0.0.0 host
I think it shows you default route address.
But you can do one thing, by using Sniffer you can check out MAC addesss -> IP address.
0.0.0.0 is belongs to source IP address.
Source IP address for the DSG stream. If an asterisk (*) appears as the source IP address, it indicates that the source IP address is 0.0.0.0, which allows any IP address as the source IP address.