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Help Cisco router - ISP cable modem headache!

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jamin123

IS-IT--Management
Feb 28, 2002
182
US
1.
I sign up with Adelphia and desperately need help

getting a valid IP with a cisco router.
If you notice below there's an auto install script

trying to run on ethernet 1. The script runs if the

modem goes directly to the PC. I've a 2611 configure

with NAT and firewall, but I can't get a public IP

because Aldephia initial installation is configured to

issue a private IP through NAT VIA script, which is

trying to run on my 2611 router interface e1. Is there

a way around there script and private NAT IP? Maybe a

"ip nat inside source static" command. Any one using

Adelphia cable internet? If yes, what's the work around

and how did you get the router to pickup an IP?

First I tried to get an IP with the router unsuccessfully, so I tried with the computer.

2.

When I connect the modem to the PC I got the following

IPconfig:

IP Address. . . . . . . . . . . . : 10.252.36.195
Subnet Mask . . . . . . . . . . . : 255.255.255.192
Default Gateway . . . . . . . . . : 10.252.36.193
DHCP Server . . . . . . . . . . . : 68.232.108.202
DNS Servers . . . . . . . . . . . : 68.232.108.202


IP Address. . . . . . . . . . . . : 68.235.173.11
Subnet Mask . . . . . . . . . . . : 255.255.254.0
Default Gateway . . . . . . . . . : 68.235.172.1
DHCP Server . . . . . . . . . . . : 68.232.108.202
DNS Servers . . . . . . . . . . . : 24.51.159.130
24.51.159.133
3.

When I attached the router to the modem I got this on

reload:


Loading BASDefaultCMConfig1.0.cfg from 68.232.108.202

(via Ethernet1): !
[OK - 4968/9216 bytes]

Loading BASDefaultCMConfig1.0.cfg from 68.232.108.202

(via Ethernet1): !
[OK - 4968/9216 bytes]


^
% Invalid input detected at '^' marker.

c`
^
% Invalid input detected at '^' marker.

t
^
% Invalid input detected at '^' marker.


^
% Invalid input detected at '^' marker.

SETUP: new interface Ethernet0 placed in "shutdown"

state


00:00:06: %LINK-3-UPDOWN: Interface Ethernet0, changed

state to up
00:00:06: %LINK-3-UPDOWN: Interface Ethernet1, changed

state to up
00:00:07: %LINEPROTO-5-UPDOWN: Line protocol on

Interface Ethernet1, changed sta
te to up
00:00:13: %LINEPROTO-5-UPDOWN: Line protocol on

Interface Ethernet0, changed sta
te to up
00:00:13: %LINEPROTO-5-UPDOWN: Line protocol on

Interface Ethernet1, changed sta
te to up
00:00:21: AUTOINSTALL: Ethernet1 is assigned

10.10.171.45
00:00:21: AUTOINSTALL: Obtain siaddr 68.232.108.202 (as

config server)
00:00:21: AUTOINSTALL: Obtain default router (opt 3)

10.10.168.1
00:00:23: %PARSER-4-BADCFG: Unexpected end of

configuration file.

00:00:23: %SYS-5-CONFIG_I: Configured from

tftp://68.232.108.202/BASDefaultCMCon
fig1.0.cfg by console
00:00:31: %LINK-5-CHANGED: Interface Ethernet0, changed

state to administrativel
y down
00:00:34: %LINEPROTO-5-UPDOWN: Line protocol on

Interface Ethernet0, changed sta
te to down
00:00:34: %IP-5-WEBINST_KILL: Terminating DN
RouteS process

4.

Every thing I ping transilate to this IP "68.168.78.92"


Router#ping cisco.com
Translating "cisco.com"...domain server

(255.255.255.255) [OK]

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 68.168.78.92, timeout

is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip

min/avg/max = 36/42/60 ms



Router#trace cisco.com
Tracing the route to trace cisco.com (68.168.78.92)

1 0.0.0.0 24 msec 12 msec 12 msec
2 67.20.47.45 12 msec 20 msec 12 msec
3 68.168.17.109 16 msec 16 msec 40 msec
4 24.48.9.153 16 msec 24 msec 40 msec
5 66.109.1.161 24 msec 16 msec 20 msec
6 66.109.0.109 20 msec 16 msec 16 msec
7 66.109.0.114 24 msec 24 msec 24 msec
8 66.109.1.82 24 msec 28 msec 28 msec
9 66.109.14.6 28 msec 28 msec 40 msec
10 * * *
11
 
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