User’s Guide 32
Debug
¾ debug
Display corresponding message, the protocol debug just show packet information send to or
receive from RF interface.
CM>debug ?
console Display console message
ip IP information
dhcp DHCP protocol information
arp ARP information
l2 Layer 2 information
nat NAT translation information
CM>debug ip ?
tcp TCP information
udp UDP information
icmp ICMP information
rip RIP protocol information
Example:
CM>debug ip tcp
TCP: rcvd src:10.0.0.3(1150) dst:172.17.100.134(23) chksum:F368
TCP: Seq#:1711689473 Ack#:1591494822 dataOffset:20 Flags:10(h)
TCP: rcvd src:172.17.100.134(23) dst:10.0.0.3(1150) chksum:7587
TCP: Seq#:1591494822 Ack#:1711689473 dataOffset:20 Flags:18(h)
TCP: rcvd src:10.0.0.3(1150) dst:172.17.100.134(23) chksum:F368
TCP: Seq#:1711689473 Ack#:1591494977 dataOffset:20 Flags:10(h)
TCP: rcvd src:172.17.100.134(23) dst:10.0.0.3(1150) chksum:DC13
¾ undebug
Disable debug function
CM>undebug ?
console Disable console message
ip IP information
dhcp DHCP protocol information
arp ARP information
l2 Layer 2 information
nat NAT translation information
all Disable all debugging functions
Image
¾ image upgrade {1|2}
Download the specified firmware image name from TFTP server and store in as “image 1” or
“image 2”. If {1|2} is not specified, cable modem will upgrade the other image. (If cable modem
boot with image 2, it will upgrade image 1)
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General