Hi i use 7246 with Cisco IOS SCH3 and modem 3925 connected but i cant get IP from DHCP server
Modem stuck to init(d) state .
For provisioning i use DACS ( docsis auto configuration system )
Machine where si DACS is also act as TFTP , NTP ( for cmts ) etc ..
Any help ???
Here is debug output from CMTS
Jul 20 13:51:10.293: DHCPINFO hwidb Bundle1 MAC 105f.4980.2e60 SID 1 dhcp_op 1
Jul 20 13:51:10.293: DHCPINFO wan info circuit 800103E9 remote_system_id 105f.4980.2e60 host 105f.4980.2e60 remote_device_class 0x0(UNKNOWN)
Jul 20 13:51:10.293: cmts_select_giaddr: 105f.4980.2e60 is cable modem using giaddr 10.104.3.1
Jul 20 13:51:10.293: DHCP cmts_helper_forward idb Bundle1 client 105f.4980.2e60 10.104.1.6 type=0x0 dc=0x1
Jul 20 13:51:10.293: DHCPGLEAN input idb Bundle1 MAC 105f.4980.2e60 SID 1 type 1
Jul 20 13:51:10.293: op = 1 - BOOTREQUEST htype = 1 hlen = 6 hops = 0
Jul 20 13:51:10.293: xid = 0x47507EF5 secs = 129 flags = 0x0
Jul 20 13:51:10.293: ciaddr = 0.0.0.0 yiaddr = 0.0.0.0
Jul 20 13:51:10.293: siaddr = 0.0.0.0 giaddr = 0.0.0.0
Jul 20 13:51:10.293: chaddr = 105f.4980.2e60 sname =
Jul 20 13:51:10.293: filename =
Jul 20 13:51:10.293: DHCP Option 53 - Message Type: 1 - DHCPDISCOVER
Jul 20 13:51:10.293: DHCP Option 55 - Parameter Request List: Options 1 2 3 4 7 6 122
Jul 20 13:51:10.293: DHCP Option 60 - Vendor Class Identifier text: docsis3.0: Hex: 64:6F:63:73:69:73:33:2E:30:3A
Jul 20 13:51:10.293: DHCP Option 125 - Length 127- Value: 00:00:11:8B:7A:01:01:02:05:75:01:01:01:02:01:03:03:01:01:04:01:01:05:01:01:06:01:01:07:01:0F:08:01:10:09:01:00:0A:01:01:0B:01:18:0C:01:01:0D:02:00:40:0E:02:00:0A:0F:01:01:10:04:00:00:00:06:11:01:00:14:01:00:15:01:3F:16:01:01:17:01:01:18:01:04:19:01:04:1A:01:04:1B:01:20:1C:01:02:1D:01:08:1E:01:20:1F:01:10:20:01:10:21:01:02:22:01:01:23:01:00:24:01:00:25:01:01:26:02:00:FF:27:01:01
Jul 20 13:51:10.293: DHCP Option 43 - Vendor Specific Information text: ..ECM..ECM:EMTA:EPS..261280321..1.0. epc3925-E15-5-v302r12911-100201c..2.3.0_R1..105f49..EPC3925..Cisco... Hex: 02:03:45:43:4D:03:0C:45:43:4D:3A:45:4D:54:41:3A:45:50:53:04:09:32:36:31:32:38:30:33:32:31:05:03:31:2E:30:06:20:65:70:63:33:39:32:35:2D:45:31:35:2D:35:2D:76:33:30:32:72:31:32:39:31:31:2D:31:30:30:32:30:31:63:07:08:32:2E:33:2E:30:5F:52:31:08:06:31:30:35:66:34:39:09:07:45:50:43:33:39:32:35:0A:05:43:69:73:63:6F:FE:01:08
Jul 20 13:51:10.293: DHCP Option 61 - Client Identifier: FF:49:80:2E:60:00:03:00:01:10:5F:49:80:2E:60
Jul 20 13:51:10.293: DHCP Option 57 - Max Message Size: 1500
Jul 20 13:51:10.293: DHCP Option 255 - End of DHCP Options Marker
Jul 20 13:51:10.293: DHCPGLEAN hwidb Bundle1 found for MAC 105f.4980.2e60
Jul 20 13:51:10.293: New DPM and APM code in DHCPv4 glean for MAC 105f.4980.2e60
Jul 20 13:51:10.293: DS and SIDP are valid in APM, DPM path in DHCPv4 glean for
!
interface Bundle1
ip address 10.104.4.1 255.255.255.0 secondary
ip address 10.104.3.1 255.255.255.0
no cable arp filter request-send
no cable arp filter reply-accept
no cable arp
cable source-verify dhcp
cable dhcp-giaddr policy
cable helper-address 10.104.1.6
ok, line from hunt for red October..
but can you ping 10.104.3.1 from 10.104.1.6 ?
~Carl
Yes i can ping
[root@dacs ~]# ping 10.104.3.1
PING 10.104.3.1 (10.104.3.1) 56(84) bytes of data.
From 10.104.1.1: icmp_seq=1 Redirect Host(New nexthop: 10.104.1.11)
64 bytes from 10.104.3.1: icmp_seq=1 ttl=255 time=1.20 ms
64 bytes from 10.104.3.1: icmp_seq=2 ttl=255 time=0.177 ms
64 bytes from 10.104.3.1: icmp_seq=3 ttl=255 time=0.150 ms
64 bytes from 10.104.3.1: icmp_seq=4 ttl=255 time=0.216 ms
64 bytes from 10.104.3.1: icmp_seq=5 ttl=255 time=0.241 ms
64 bytes from 10.104.3.1: icmp_seq=6 ttl=255 time=0.209 ms
64 bytes from 10.104.3.1: icmp_seq=7 ttl=255 time=0.168 ms
64 bytes from 10.104.3.1: icmp_seq=8 ttl=255 time=0.289 ms
64 bytes from 10.104.3.1: icmp_seq=9 ttl=255 time=0.179 ms
64 bytes from 10.104.3.1: icmp_seq=10 ttl=255 time=0.172 ms
64 bytes from 10.104.3.1: icmp_seq=11 ttl=255 time=0.184 ms
--- 10.104.3.1 ping statistics ---
11 packets transmitted, 11 received, 0% packet loss, time 10001ms
rtt min/avg/max/mdev = 0.150/0.290/1.206/0.292 ms
Does it work for some modems but not all?
Any iptables on the linux server?
On the linux server, what does "tcpdump -s 1500 -v port bootps" say ?
What do the DHCP server logs say?
Is the DHCP server setup with that subnet/scope?