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9. DOCSIS configuration file VSIF tag support
This feature allows downloading Cable Router configuration from remote TFTP server via
DOCSIS configuration file VSIF assignment. The router text based command lines configuration
file can be downloaded from specified remote TFTP server. After the download of DOCSIS
configuration file, it will also download Router configuration file and configure the router.
Example:
0x2b 0x31 0x08 0x03 0x00 0xd0 0x59 0x01 0x2a 0x63 0x6f 0x70 0x79 0x20 0x74 0x66
0x74 0x70 0x3a 0x63 0x6f 0x6e 0x66 0x69 0x67 0x20 0x31 0x37 0x32 0x2e 0x32 0x31
0x2e 0x31 0x2e 0x32 0x35 0x30 0x20 0x63 0x6d 0x63 0x6f 0x6e 0x66 0x69 0x67 0x2e
0x74 0x78 0x74
Meaning:
0x2b 0x31 VSIF tag number 43 (0x2b), total length is 49
bytes(0x31), the length does not include this two
bytes.
0x08 0x03 0x00 0xd0 0x59 Vendor ID sub-type 08(0x08), ID length 3
(0x03), Ambit vendor ID is 0x00 0xd0 0x59
0x01 0x2a 0x01 mean configuration download,
command length 42 bytes (0x2a)
0x63 0x6f …… 0x78 0x74 Command string, as following
copy tftp:config 172.21.1.250 cmconfig.txt
172.21.1.250 is the TFTP server ip address, which is changeable.
“cmconfig.txt” is the text file containing the router configuration, which is changeable.
Example:
Change the telnet password “cableroot” to “abcdefg” and key-1 key string to “cablerouter”.
The cmconfig.text file should contain the following:
Pwd admin
Cableroot
abcdefg
rip key-chain1 1key-string cablerouter