I'm configuring a BSR 64k in a test environment. I have a provisioning server running DHCP, TFTP, and is also my gateway router. That IP is 172.16.0.1
running config is here: https://pastebin.com/R7ZCgkx8
various "show" commands here: https://pastebin.com/UQq13tJV
I have a cable modem connected, it locks to downstream and upstream fine, but gets stuck at init(rc). DHCP requests are not being forwarded to the server, I'm not seeing any DHCP traffic in server logs.
From the server [172.16.0.1], I can ping the CMTS g 14/1 interface as well as cable 0/0 primary and secondary IPs.
Also, I can't ping the internet from the CMTS anymore. I was screwing with access lists and routing policy. I removed all of the configuration I did but there must be some changes I can't see in the running config.
Any ideas? Any help would be greatly appreciated.
Post your email address, I'll send a config. yours isn't 100%, but may not be the reason the modem doesn't get an ip address.
run a debug, debug ip udp dhcp detail
this will show the request going to the dhcp server and what it gets back. undebug all turns off all debug
interface loopback 1
cable bundle 1 master
ip address 10.45.0.1 255.255.0.0
cable helper-address 172.18.109.254 cable-modem global
no shutdown
interface cable 2/0
cable bundle 1
no ip address
mdrc enable
no trap-enable-if
cable bind downstream 9/0/0,9/0/1,9/0/2,9/0/3,9/0/4,9/0/5,9/0/6,9/0/7,9/1/0,9/1/1,9/1/2,9/1/3,9/1/4,9/1/5,9/1/6,9/1/7
cable bind upstream 0/0,0/1,0/2,0/3,1/4,1/5
cable dynamic-service authorization-mode unauthorize
cable dynamic-service active-timeout 60
cable dynamic-service admitted-timeout 300
no shutdown
cable downstream bonding-group 1 9/0/0 9/0/1 9/0/2 9/0/3 9/0/4 9/0/5 9/0/6 9/0/7 9/1/0 9/1/1 9/1/2 9/1/3 9/1/4 9/1/5 9/1/6 9/1/7
cable downstream bonding-group 2 9/0/0 9/0/1 9/0/2 9/0/3 9/0/4 9/0/5 9/0/6 9/0/7
cable downstream bonding-group 3 9/1/0 9/1/1 9/1/2 9/1/3 9/1/4 9/1/5 9/1/6 9/1/7
cable downstream bonding-group 4 9/1/0 9/1/1 9/1/2 9/1/3
cable upstream bonding-group 1 0/0/0 0/1/0
cable upstream bonding-group 2 0/0/0 0/1/0 0/2/0 0/3/0
cable mtc-mode
cable t4-multiplier 4
ip dhcp relay information option
host authorization on
dhcp leasequery authorization on
Thanks cmcaldas.
I tried "debug ip udp dhcp detail" but didn't get any output. Also, the cable modems never get past init(rc) to the dhcp stage. Could this be an RF issue, or something I need to change with my upstream config? I did make some changes to my running config, but I'll wait for your response.
Thank you!
wow kamien, it's been something like 4 years. got bored and came back to kill some time?
send some type do diagram or how the rf is wired. the modem should get be getting about 0 from the downstream, key is the upstream to have about 40 db worth of pads back to the receiver.
post the log file from the cable modem, could show some light on what's going on.
That's an old comment ... not sure why the date is showing so recent.
But yes, I do come back occasionally to kill some time :)
Thank you so much for the help. I've got DHCP working, the cable modem is now registered.
- not bonding downstream channels
- only sees one upstream channel
I'm really confused how upstream channels are notated. I would expect them to be slot/port/channel, just like the downstreams. But when you bind upstream channels to the CMTS ... it's only slot/port? and when you try to create a bonding-group, you can only add slot/port/0 ??
If I try to remove 0/1, 0/2, and 0/3 from the upstream binding (I'd assume they're slot 0, ports 1 2 and 3):
bsr:7A(config-if)#no cable bind up 0/1,0/2,0/3
Following list of upstream channels need to be shutdown for binding
0/1,0/2,0/3
Okay, so if I show upstream 0/1, it's already shutdown.
#sh run cable up port 0/1
cable upstream port 0/1
cable upstream 0/0 shutdown
cable upstream 0 shutdown
cable upstream 1/0 shutdown
cable upstream 1 shutdown
cable upstream 2/0 shutdown
cable upstream 2 shutdown
cable upstream 3/0 shutdown
cable upstream 3 shutdown
cable upstream 4/0 shutdown
cable upstream 4 shutdown
cable upstream 5/0 shutdown
cable upstream 5 shutdown
cable upstream shutdown
????
here's my config for upstream 0/0
cable upstream port 0/0
cable upstream 0 channel-width 1600000
cable upstream 0 frequency 17088000
cable upstream 0/0 channel-type atdma
cable upstream 0/0 modulation-profile 202
cable upstream 1 channel-width 1600000
cable upstream 1 frequency 23600000
cable upstream 1/0 channel-type atdma
cable upstream 1/0 modulation-profile 202
cable upstream 2 channel-width 1600000
cable upstream 2 frequency 30112000
cable upstream 2/0 channel-type atdma
cable upstream 2/0 modulation-profile 202
cable upstream 3 channel-width 1600000
cable upstream 3 frequency 39760000
cable upstream 3/0 channel-type atdma
cable upstream 3/0 modulation-profile 202
no cable upstream 0/0 shutdown
no cable upstream 0 shutdown
no cable upstream 1/0 shutdown
no cable upstream 1 shutdown
no cable upstream 2/0 shutdown
no cable upstream 2 shutdown
no cable upstream 3/0 shutdown
no cable upstream 3 shutdown
cable upstream 4/0 shutdown
cable upstream 4 shutdown
cable upstream 5/0 shutdown
cable upstream 5 shutdown
cable upstream fiber-node FN-69
no cable upstream shutdown
cable upstream 0 spectrum-group sg69
cable upstream 1 spectrum-group sg69
cable upstream 2 spectrum-group sg69
cable upstream 3 spectrum-group sg69
interface cable 0/0
cable bundle 1
no ip address
cable bind downstream 1/0/0,1/0/1,1/0/2,1/0/3,1/1/0,1/1/1,1/1/2,1/1/3
cable bind upstream 0/0,0/1,0/2,0/3
cable dynamic-service authorization-mode disable
no shutdown
cable downstream bonding-group 1 1/0/0 1/0/1 1/0/2 1/0/3 1/1/0 1/1/1 1/1/2 1/1/3
cable downstream bonding-group 2 1/0/0 1/0/1 1/0/2 1/0/3
cable upstream bonding-group 1 0/0/0 0/1/0 0/2/0 0/3/0
cable upstream bonding-group 2 0/0/0 0/1/0
ip dhcp relay information option
copy the example, more so, your missing
cable mtc-mode
cable t4-multiplier 4