I have recently purchased a cisco 831 for my LAN. I have cable modem. I have connected cisco 831 using both straight-through and cross-over cables to my cable modem but it does not work? No communication whatsoever?
Please tell does the 831 work with all cable modems or not? I thought cable modem was all the same technology or does it vary from different suppliers?
I have tried 2 different 831 routers because I thought the first was dodgy, but even with second one I still get no communication at all.I know my cable modem is working because if plug my pix firewall it picks up signal no problem.
Please find below the output of the "show interface Ethernet1" Ethernet1 is my WAN port on the 831 router.
Ethernet1 is up, line protocol is down
Hardware is PQUICC_FEC, address is 0011.93b4.a97c (bia 0011.93b4.a97c)
Internet address will be negotiated using DHCP
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 128/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Unknown Speed
ARP type: ARPA, SNAP, ARP Timeout 04:00:00
Last input never, output 00:00:04, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles