Hi All,
I love the docsis_server and i invested much time to get things run.
Now I get docsis_server 3.5 run with option 122 (MTA-support). Therfore i added some tricky patches.
So i can do provisioning of Arris TM502B with SIP-load. (GUPI-MTA provisioning flow)
On this board you can find i good howto with dhcpd:
http://docsis.org/node/291
Follow this instruction to set the correct Configfile-Settings.
This works great, but i want to use docsis_server instead of dhcpd.
My english is not realy perfect, but i try to explain you how it works:
First i patched the dhcp-options.c file so mta's are identified as modems. This makes it easy to
give the mta its subnet and configurationfile like cablemodems.
Second i patched the mysql-config_opts.c so the opt_dtype MTAIP and MTAR are working now.
For cablemodem only MTAIP is used to set the TSP's DHCP (Option 122, suboption 1).
It is tricky to use the table config_opt_macs for this, because you may not want to set this option
to every modem. In this case you MUST set cfg_id to 1! Example:
macaddr: 001596354770
opt_id: 1
opt_type: 122
opt_dtype: MTAIP
opt_value: 172.17.2.60
sub_opt: 0
comment: TSP's primary DHCP-Server
If you want to disable the MTA for this device put 0.0.0.0 for opt_value here.
For the MTA-Subnet you have to set Option 122 Suboption 3 and 6.
This is very easy now: Choose MTAR as opt_dtype in table config_opts and fill in the FQDN of your Server
and comma-separated the Keberos REALM. Example:
server_id :1
opt_id : 6 <- your cmts_vlan/subnet for MTA's
opt_type: 122
opt_dtype : MTAR
opt_value: docsis_server_35.bridacom.lab,BASIC.1
sub_opt: 0
comment: MTA-ProvisioningServer,REALM
This value will be splittet in suboption 3 and 6.
Thats all!
Here you can download the patched files for docsis_server 3.5:
http://www.micabu.de/downloads/mb-docsis_server_mta_patch.rar
In the files i added some comments too.
Copy the files in the src-directory and compile again.
Remember to restart the docsis_server after change these options in the database.
Have fun!
regards,
Michael
Hi Michael,
thank you very much for your patch, it runs fine with packetcable.
best regards
Benedikt
Hi Benedikt,
glad to hear that someone is using it!
Thank you for the feedback!
regards,
Michael
Hi Michael:
After Many test, finally I get that docsis server work wiht MTA support, but I made a hibryd between docsis_server(CM) and dhcpd(CPE, MTA).
I made a little changes in the info of the tables config_opts and config_opts_macs, because I have the configuration of different subnets in the same gateway. This is the changes that I made:
mysql> select * from config_opts;
+-----------+--------+----------+-----------+-----------------------------+---------+------------------------------+
| server_id | opt_id | opt_type | opt_dtype | opt_value | sub_opt | comment |
+-----------+--------+----------+-----------+-----------------------------+---------+------------------------------+
| 1 | 1 | 54 | IP | 192.168.0.1 | 0 | Lease Server IP |
| 1 | 1 | 6 | 2IP | 192.168.0.2 | 0 | DNS Servers |
| 1 | 1 | 15 | CHAR | domain.pe | 0 | Domain Name |
| 1 | 1 | 2 | INT32 | -7200 | 0 | Time Offset |
| 1 | 1 | 4 | IP | 192.168.0.1 | 0 | Time Server |
| 1 | 1 | 7 | IP | 192.168.0.1 | 0 | Log Server |
| 1 | 1 | 66 | CHAR | 192.168.0.1 | 0 | Tftp Server |
| 1 | 1 | 122 | MTA-REALM | docsis1.domain.pe,BASIC.1 | 0 | MTA-ProvisioningServer,REALM |
Note: In the last line the opt_id is the same that the other options.
mysql> select * from config_opts_macs;
+--------------+--------+----------+-----------+------------+---------+---------+
| macaddr | opt_id | opt_type | opt_dtype | opt_value | sub_opt | comment |
+--------------+--------+----------+-----------+------------+---------+---------+
| 0015967319dc | 1 | 122 | MTA-IP | 192.168.0.5 | 0 | |
+--------------+--------+----------+-----------+------------+---------+---------+
Note: the opt_value is the dhcpd server
The tests was made with Arris MTA model TM402G
Rgds.
Renan
hi cuisini
it's realy a good idea.
so your cmts had set to ip helper in 2 ip address?
like
ip helper 192.168.0.5
ip helper 192.168.0.1
right ? if isc dhcpd get cm dhcp request , does isc dhcpd will set NAK back? or do nothing ?
Yes, I have 2 helper-address:
ip helper 192.168.0.5 -> for HOST
ip helper 192.168.0.1 ->for CM
when the docsis server is provisionning to cm-mac, active the option 122 and the suboption 3 and 6, this information is send to dhcpd. In the dhcpd i have the class mta configured that receive the suboption 3 and 6, and give the ip to mta of the network mta. Not set to NAK back.
Rgds.
Renán
Hi!
Good to hear!
Thanks for your response!
BR
Michael
hi
Dear micabu
can it support shared-network ?
because my last time using , can't setting the cmts_ip different with gateway.
example :
CM subnet 192.168.1.0/24 cmts_ip 192.168.1.254
CPE subnet 192.168.2.0/24 cmts_ip 192.168.1.254
because the cmts can't assign different giaddr between cable modem and cpe that what i tesing cmts.
Sonny
Hi Sonny,
sorry for the late reply!
Docsis_server only supports one primary gi_address on the cmts.
So all DHCP-Requests should come from this gi address.
To configure use the "gi-address primary" comand or simular on your cmts.
Hope this helps.
regards,
Michael
thanks you Michael
in layer-3 cmts , cm will use primary ip address become gi_address.
cpe will use secondy ip address become gi_address.
but if in layer-2 cmts , cm and cpe will use the same gi_address , that why i ask this function.
and if have muti isp , will need this function too(include client class).
anyway , thanks your ans .
Please send me your contact details regarding a project velgroup@aol.com