806 Cable/DSL Router - WAN DHCP will not Update 1

[tmCCNA]

i have a cisco 806 cable/dsl router. i can not get it to grab an ip address from the isp's dhcp server. i can ping their dns servers though. i have cable internet and the way it works is you give them your pc's mac address and they add it to a table, so you can use their internet services. using the cwrs(gui), it doesn't give me an option to set the wan address up as dhcp. it only has pppoe and with that, it wants a username and password, which i do not have with my isp since they only go by mac addresses. i tried setting up the wan port in the cli, but never could get it to grab an ip address from their dhcp server. how do you your renew an ip address anyway?

 

[tmCCNA]

degg,

they have the router mac

thanks, Travis McGuire

http://www.business-ky.com

 

[netmediasystems]

Some ISP's deny mac addresses other than the one it originally captured(verizon) and other dont care what is connected(pacbell). Of course, in your case you could have physically configured the mac-address of the WAN interface of the router to the mac-address of your pc. That way, you would be fooling the ISP. My cable ISP doesnt care what is connected.

 

[tmCCNA]

i give up on this one. i'm going to take the router to them and let them to figure it out. i can't understand why the cm won't come up with the router attached.

here is the interface status:
Interface IP-Address OK? Method Status Protocol
Ethernet0 192.168.0.1 YES manual up up
Ethernet1 unassigned YES DHCP up up

and my latest config: (i edited yours slightly)
Current configuration : 2193 bytes
!
version 12.2
no service single-slot-reload-enable
no service pad
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname Router
!
logging rate-limit console 10 except errors
enable secret 5 $1$L6RI$Lwr8TK6qom03K4f1a5R3i0
enable password 7 13514742585F5D7E7B72
!
username xxxxx password 7 10471A1807121E070D
ip subnet-zero
no ip domain-lookup
ip name-server 12.27.240.3
ip name-server 12.27.240.4
--More--
ip dhcp excluded-address 192.168.0.1
!
ip dhcp pool CLIENT
network 192.168.0.0 255.255.255.0
default-router 192.168.0.1
dns-server 12.27.240.3 12.27.240.4
netbios-name-server 12.27.240.5
!
ip dhcp pool Client
import all
network 192.168.0.0 255.255.255.0
dns-server 12.27.240.3 12.27.240.4
domain-name glasgow-ky.com
default-router 192.168.0.1
!
ip inspect name LANOUT http java-list 1
ip inspect name LANOUT ftp
ip inspect name LANOUT tcp
ip inspect name LANOUT udp
ip inspect name LANOUT smtp
--More--
no ip dhcp-client network-discovery
lcp max-session-starts 0
!
!
!
interface Ethernet0
description Lan Interface
ip address 192.168.0.1 255.255.255.0
no ip proxy-arp
ip nat inside
no ip route-cache
no cdp enable
hold-queue 32 in
hold-queue 100 out
!
interface Ethernet1
description Wan Interface
ip address dhcp
ip access-group 101 in
ip inspect LANOUT out
ip nat outside
arp timeout 1500
no cdp enable
--More--
!
ip classless
no ip http server
!
ip nat inside source list 101 interface Ethernet1 overload
ip nat inside source list 102 interface Ethernet1 overload
access-list 101 permit udp any eq bootps any
access-list 101 deny tcp any any eq finger
access-list 101 deny icmp any any echo log
access-list 101 permit ip 192.168.0.0 0.0.0.255 any
access-list 101 permit tcp any any gt 1023 established
no cdp run
!
line con 0
exec-timeout 120 0
transport input none
stopbits 1
line vty 0 4
exec-timeout 120 0
login local
length 0
transport input telnet
--More--
!
scheduler max-task-time 5000
end Travis McGuire

http://www.business-ky.com

 

[tmCCNA]

my isp is going to temporarily give me a static ip, so i better troubleshoot and see if their dhcp server is the real problem. Travis McGuire

http://www.business-ky.com

 

[cfwdude]

This is just a possibility, but some ISP's, (RCN for one) that provide customers with a dynamic ip, will not allow a dhcp server on the client side. I was not able to connect in the same situation you are in, and as soon as I turned off dhcp, BAM, I got my IP address. I have had to set up a few small business networks for clients just using static ip addresses.

Good Luck!

 

[tmCCNA]

the dhcp on my lan, shouldn't even be able to be detected by my isp. for all they know, i only have the one ip address. i'll try it, but don't think it will work. at work, we are on the same isp cable network and our router/dhcp server works just fine. Travis McGuire

http://www.business-ky.com

 

[masmith22]

I have a CISCO 806 router connect to Comcast (ISP). Comcast logs the MAC address of a pc connected to the cable modem. I am able to use the DCHP in the CISCO router. Connect your pc to the cable modem working. Transfer the IP info to your router. Here is part of my config:
ip subnet-zero
ip name-server 68.x.x.x
ip name-server 68.x.x.x
ip dhcp excluded-address 10.10.10.1
ip dhcp excluded-address 68.x.x.x 68.x.x.x
!
ip dhcp pool client
network 10.10.10.0 255.255.255.0
dns-server 68.x.x.x 68.x.x.x
domain-name comcast.net
default-router 10.10.10.1
lease infinite
!
ip inspect name myfw cuseeme timeout 3600
ip inspect name myfw ftp timeout 3600
ip inspect name myfw http timeout 3600
ip inspect name myfw rcmd timeout 3600
ip inspect name myfw realaudio timeout 3600
ip inspect name myfw smtp timeout 3600
ip inspect name myfw tftp timeout 30
ip inspect name myfw udp timeout 15
ip inspect name myfw tcp timeout 3600
ip inspect name myfw h323 timeout 3600
!
partition flash 2 6 2
!
!
!
!
interface Loopback0
ip address 10.1.1.1 255.255.255.255
!
interface Ethernet0
ip address 10.10.10.1 255.255.255.0
ip nat inside
no cdp enable
hold-queue 32 in
hold-queue 100 out
!
interface Ethernet1
mac-address 0000.0000.0000
ip address dhcp client-id Ethernet1
ip access-group 111 in
ip nat outside
ip inspect myfw out
no keepalive
no cdp enable
!
ip nat inside source list 102 interface Ethernet1 overload
ip classless
ip http server
ip pim bidir-enable
!
!
access-list 102 permit ip 10.10.10.0 0.0.0.255 any
access-list 111 permit ip 66.216.69.92 0.0.0.255 any
access-list 111 permit ip 162.115.227.61 0.0.0.255 any
access-list 111 permit icmp any any administratively-prohibited
access-list 111 permit icmp any any packet-too-big
access-list 111 permit icmp any any time-exceeded
access-list 111 permit icmp any any traceroute
access-list 111 permit icmp any any unreachable
access-list 111 permit udp any eq bootps any eq bootpc
access-list 111 permit udp any eq bootps any eq bootps
access-list 111 permit udp any eq domain any
access-list 111 permit udp any any eq isakmp
access-list 111 permit tcp any any eq telnet
access-list 111 permit tcp any any gt 1023 established
access-list 111 permit udp any any range 1718 1720
access-list 111 permit udp any range 1718 1720 any
access-list 111 permit tcp any any range 1718 1720
access-list 111 permit tcp any range 1718 1720 any
access-list 111 permit udp any range 54000 56000 any
access-list 111 permit udp any any range 54000 56000
access-list 111 permit udp any any eq 6257
access-list 111 permit tcp any any eq 6346 established
access-list 111 permit ahp any any
access-list 111 permit esp any any
no cdp run
!
line con 0
exec-timeout 120 0
password 7
logging synchronous
login
stopbits 1
line vty 0 4
exec-timeout 120 0
password 7
login
length 0
!
scheduler max-task-time 5000
end

 

[tmCCNA]

thank you all for your help. my isp ended up giving me a static ip address so i could test the router and it works perfectly. i haven't heard from them in a few weeks, so hopefully they have forgotten. maybe i can quit paying for the web server i am using now and have my own for free.

thanks again to all of you,
travis Travis McGuire

http://www.business-ky.com