Hello,
I am a senior network engineer with a 20+ year background. I am working with a small cable company (<200 subs) to install a CMTS 1000. I've configured it, set up tftp, dhcpd, and am using our ntp servers. I've gone through many of the configurations here, and I think I am pretty close.
I'm seeing the cable modem make a request at the cmts, and at the dhcp server. I see this at the CMTS..
CABLE: <> DA=ff:ff:ff:ff:ff:ff SA=00:0c:e5:24:7c:7a
SRC IP=0.0.0.0 DST IP=255.255.255.255 yiaddr=0.0.0.0 chaddr=00:0c:e5:24:7c:7a
ETHERNET: <> DA=00:00:ca:24:02:7c SA=00:04:c0:d7:bc:38
SRC IP=(our dhcpserver) DST IP=(thecmtsip) yiaddr=(theclientIP) chaddr=00:0c:e5:24:7c:7a
CABLE: <> DA=ff:ff:ff:ff:ff:ff SA=00:0c:e5:24:7c:7a
SRC IP=0.0.0.0 DST IP=255.255.255.255 yiaddr=0.0.0.0 chaddr=00:0c:e5:24:7c:7a
ETHERNET: <> DA=00:00:ca:24:02:7c SA=00:04:c0:d7:bc:38
SRC IP=(ourdhcpserver) DST IP=(thecmtsIP) yiaddr=(theclientIP) chaddr=00:0c:e5:24:7c:7a
However the modem never binds the IP.
I see this in "cable"
[constitution] cable-level# show modem-list
Level to be displayed is 'modem-list'.
Modems list
Modem Mac Address Ip Address DnCh UpCh RxPwr Status
----- ----------------- --------------- ---- ---- ----- ---------------
1 00:0c:e5:24:7c:7a 0.0.0.0 3 5 50 rng-aborted
End of list
I've actually seen this say range-complete, but it still does not get an IP.
So.. any ideas? I've tried installing docsis_server (so close and yet so far) if I could find logs I could probably get it running. I've built a .bin file using docsis, and I know the tftp server works as I can download the file from it.
So what is the cable modem not seeing?
[constitution] remote1> system
Software Version: 3.6.1
System up time: 1 day, 04:13:37
System name: constitution
ip left off... it's all public
Anyone???
Thanks
info and show bootp-list
I've helped a ton of people on here and free help is good. Pay help is better. If you're ever stuck and need a professional solution from a fellow private cable operator, let me know. It seems like cell phone calls at 10:00pm get the most done. :)
emkowale
I could certainly use some backup! I got it working, turns out motorola cable modems are picky and have to have ALL of the settings from dhcp or they will just sit and range forever, so the cmts was working fine! I was just going nuts with it, and finally turned on some modem activity and found an obscure help doc somewhere.
I now have docsis_server 3.5 up but it's looking like i'm going to have to write a ton of php to maintain this thing and get info from it. I've checked with some other suppliers that have some nice stuff, but $$$'s or not being able to host in house is not what we want.
I'm working to integrated it into an online billing/support system.
You can reach me at rpoorman at the domain cssnw.com
Regards,
Ray
[constitution] admin# info
Parameter Value
--------- -----
provisioning-control use-nvram
sw-server-ip-addr 0.0.0.0
sw-filename "(unknown)"
config-tftp-ip-addr xx.xx.43.12
config-tftp-filename "cablemodem.bin"
sw-admin-status allow-provisioning-upgrade
dp-statistics-interval 10 seconds
bootp-relay-control relay-tagging-enabled
time-rfc868-addr xx.xx.47.10
time-offset 28800
time-sntp-addr xx.xx.47.10
[constitution] admin# show bootp-list
Level to be displayed is 'bootp-list'.
BOOTP relay table
Index Status IP Address Client Types Relay Count
----- ---------- --------------- ------------- -----------
1 active xx.xx.43.10 any-cm-or-cpe 1981
2 not-in-svc 255.255.255.255 any-cm-or-cpe 0
3 not-in-svc 255.255.255.255 any-cm-or-cpe 0
4 not-in-svc 255.255.255.255 any-cm-or-cpe 0
5 not-in-svc 255.255.255.255 any-cm-or-cpe 0
6 not-in-svc 255.255.255.255 any-cm-or-cpe 0
7 not-in-svc 255.255.255.255 any-cm-or-cpe 0
8 not-in-svc 255.255.255.255 any-cm-or-cpe 0
9 not-in-svc 255.255.255.255 any-cm-or-cpe 0
10 not-in-svc 255.255.255.255 any-cm-or-cpe 0
End of list
[constitution] cable-level# show mod-iuc-list/1
Level to be displayed is 'mod-iuc-list/1'.
Modulation list
IUC Control Type PreLn DfEnc F-EC F-CL ScrOn ScrSeed BstSz GuardSz LastCW
--- ------- ----- ----- ----- ---- ---- ----- ------- ----- ------- ------
R active qpsk 64 false 0 16 true 338 0 8 false
RD off qpsk 72 false 5 75 true 338 0 8 false
IR active qpsk 128 false 5 34 true 338 0 48 false
PR active qpsk 128 false 5 34 true 338 0 48 false
SD active qpsk 72 false 5 75 true 338 12 8 false
LD active qpsk 80 false 8 220 true 338 0 8 false
End of list
[constitution] cable-level# show downstream
Level to be displayed is 'downstream'.
Name Value
---- -----
description "cabledown"
mtu 1764 octets
speed 30341646 bits/second
hi-speed 30 megabits/second
operational-status up
last-change 62050 100ths-of-seconds
out-octets 3343392899 octets
out-unicast-packets 4493 packets
out-non-unicast-packets 0 packets
out-multicast-packets 648746476 packets
out-broadcast-packets 21592 packets
out-discards 0 packets
out-errors 0 packets
id 11 (number)
[constitution] cable-level# show modem-list
Level to be displayed is 'modem-list'.
Modems list
Modem Mac Address Ip Address DnCh UpCh RxPwr Status
----- ----------------- --------------- ---- ---- ----- ---------------
1 00:0c:e5:24:7c:7a 0.0.0.0 3 5 49 rng-aborted
End of list
You say you can't get to "logs". How come?
The CMTS should display logs. Are you unaware of how to get to them?
ARRIS Tech
OK windwatervawes. Go to #event set appropriate levels of logging, set throttling to maintain-below.... and open udp514 on Your linux box. Set ip of linux box as syslog. Set (for the beginning) +syslog at all events. Should work fine. Seems to be RF problem.
It seems like CM deosn't like DHCP offer.
Have you specified next-server option? filename,ntp server, time offset etc?