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Basic 891-W Config

sjackowski
Level 1
Level 1

Trying to configure an 891-W on my home network.

Basic TW cable modem ---> 891-W with DHCP

I have done the following and are getting an IP address but no internet.

I have FE8 set as DHCP and VLAN1 as 192.168.1.1 255.255.255.0

I originally thought that "WAN GE 0" would be connected via my modem but I had no luck there either so I set FE8 as WAN?

Building configuration...

Current configuration : 2907 bytes

!

! No configuration change since last restart

version 15.1

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname 891

!

boot-start-marker

boot-end-marker

!

!

enable secret 5 $1$NEo3$vKhriHJTWWvuUH91t/4T2/

enable password

!

no aaa new-model

!

service-module wlan-ap 0 bootimage autonomous

crypto pki token default removal timeout 0

!

!

--More--                           ip source-route

no ip routing

!

!

!

ip dhcp excluded-address 192.168.1.1

!

ip dhcp pool HOME_CLIENTS

import all

network 192.168.1.0 255.255.255.0

default-router 192.168.1.1

!

!

no ip cef

no ipv6 cef

!

!

!

!

multilink bundle-name authenticated

!

!

!

!

--More--                           !

!

license udi pid CISCO891W-AGN-A-K9 sn FTX163086U5

!

!

username cisco4 privilege 15 secret 4 drWavSXMI9Ae0nTpOhq3JAvEAKC6rTmASLdwwVrkjJ.

username cisco1 privilege 15 secret 4 gMj8cDXfU6CzFI9r1WoD5G6GTI5KwVY2O2lU2DSTP4c

username cisco2 privilege 15 secret 4 6yU7cyZFSWW4QGtgFIB/eBlLIAvZBlES6kZS.IBYhO6

!

!

!

!

!

!

!

!

!

!

!

interface FastEthernet0

no ip address

--More--                           !

interface FastEthernet1

no ip address

!

interface FastEthernet2

no ip address

!

interface FastEthernet3

no ip address

!

interface FastEthernet4

no ip address

!

interface FastEthernet5

no ip address

!

interface FastEthernet6

no ip address

!

interface FastEthernet7

no ip address

!

interface FastEthernet8

ip address dhcp

--More--                            ip nat outside

ip virtual-reassembly in

no ip route-cache

duplex half

speed auto

!

interface GigabitEthernet0

ip address dhcp

ip nat outside

ip virtual-reassembly in

no ip route-cache

duplex auto

speed auto

!

interface wlan-ap0

description Service module interface to manage the embedded AP

no ip address

no ip route-cache

arp timeout 0

!

interface Wlan-GigabitEthernet0

description Internal switch interface connecting to the embedded AP

no ip address

!

--More--                           interface Vlan1

ip address 192.168.1.1 255.255.255.0

ip nat inside

ip virtual-reassembly in

no ip route-cache

!

interface Async1

no ip address

encapsulation slip

no ip route-cache

!

ip forward-protocol nd

!

!

ip http server

ip http authentication local

no ip http secure-server

ip http timeout-policy idle 60 life 86400 requests 10000

ip nat inside source list 101 interface Vlan1 overload

ip route 0.0.0.0 0.0.0.0 GigabitEthernet0

ip route 0.0.0.0 0.0.0.0 FastEthernet8

!

access-list 101 permit ip 192.168.1.0 0.0.0.255 any

!

--More--                           !

!

!

!

snmp-server community public RO

!

control-plane

!

!

!

!

mgcp profile default

!

!

!

!

!

line con 0

line 1

modem InOut

stopbits 1

speed 115200

flowcontrol hardware

line 2

--More--                            no activation-character

no exec

transport preferred none

transport input all

transport output pad telnet rlogin udptn ssh

line aux 0

line vty 0 4

privilege level 15

password 110fall2014

login local

transport input telnet

transport output telnet

line vty 5 15

privilege level 15

login local

transport input telnet

transport output telnet

!

end

891#

28 Replies 28

mahmoodmkl
Level 7
Level 7

Hi

it should be interface FastEthernet8 overload.

Thanks

kmccourt
Level 1
Level 1

Your config above has

no ip routing

First of all you'd better change this to

ip routing

cadet alain
VIP Alumni
VIP Alumni

Hi,

to add to the 2 previous replies, get rid of these 2 static routes as first they are pointing to a multipoint exit interface( which is highly discouraged for performance reasons and  may not work if the next-hop is not implementing proxy-arp) and secondly because they are not needed as dhcp is advertising you the default route.

---->

no ip route 0.0.0.0 0.0.0.0 GigabitEthernet0

no ip route 0.0.0.0 0.0.0.0 FastEthernet8

Regards

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.

Thanks for the responses, can I just delete the lines from my config and reload using TFTP or is there a command that will remove these using the CLI?

no ip route 0.0.0.0 0.0.0.0 GigabitEthernet0

no ip route 0.0.0.0 0.0.0.0 FastEthernet8

Those are the commands you enter via the CLI, the 'no' negating the  previously entered commands. You need to enter global configuration  mode, so it will look something like:

router#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

router(config)#ip routing

router(config)#no ip route 0.0.0.0 0.0.0.0 GigabitEthernet0

router(config)#no ip route 0.0.0.0 0.0.0.0 FastEthernet8

router(config)#exit

router#

You'll have to save the config before rebooting otherwise any changes will be lost.

OK done. What about this comment from above "it should be interface FastEthernet8 overload."?

I will connect the router to the modem via the FastEthernet8 port and try again I suppose.

Still no Internet, but router and laptop are getting IP address, if I do IPCONFIG /ALL everything looks good, DNS is 209.18.47.61 and 62 which I assume is Time Warner?

Sent from Cisco Technical Support iPhone App

You should be trying to use the 'proper' WAN port (Gi0) rather than Fa8 as the latter is a switch port. Now that you've made the above changes, try using Gi0 again but first add:

ip nat inside source list 1 interface GigabitEthernet0 overload

access-list 1 permit 192.168.1.0 0.0.0.255

If that fails to work it might be worth reposting your latest config.

I made the change as you suggested but still nothing, perhaps my VLAN is off?

Building configuration...

Current configuration : 2821 bytes

!

! No configuration change since last restart

version 15.1

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname 891

!

boot-start-marker

boot-end-marker

!

!

enable secret 5 $1$NEo3$vKhriHJTWWvuUH91t/4T2/

enable password

!

no aaa new-model

!

service-module wlan-ap 0 bootimage autonomous

crypto pki token default removal timeout 0

!

!

--More--                           ip source-route

!

!

!

ip dhcp excluded-address 192.168.1.1

!

ip dhcp pool HOME_CLIENTS

import all

network 192.168.1.0 255.255.255.0

default-router 192.168.1.1

!

!

ip cef

no ipv6 cef

!

!

!

!

multilink bundle-name authenticated

!

!

!

!

!

--More--                           !

license udi pid CISCO891W-AGN-A-K9 sn FTX163086U5

!

!

username cisco4 privilege 15 secret 4 drWavSXMI9Ae0nTpOhq3JAvEAKC6rTmASLdwwVrkjJ.

username cisco1 privilege 15 secret 4 gMj8cDXfU6CzFI9r1WoD5G6GTI5KwVY2O2lU2DSTP4c

username cisco2 privilege 15 secret 4 6yU7cyZFSWW4QGtgFIB/eBlLIAvZBlES6kZS.IBYhO6

!

!

!

!

!

!

!

!

!

!

!

interface FastEthernet0

no ip address

!

--More--                           interface FastEthernet1

no ip address

!

interface FastEthernet2

no ip address

!

interface FastEthernet3

no ip address

!

interface FastEthernet4

no ip address

!

interface FastEthernet5

no ip address

!

interface FastEthernet6

no ip address

!

interface FastEthernet7

no ip address

!

interface FastEthernet8

ip address dhcp

ip nat outside

--More--                            ip virtual-reassembly in

duplex half

speed auto

!

interface GigabitEthernet0

ip address dhcp

ip nat outside

ip virtual-reassembly in

duplex auto

speed auto

!

interface wlan-ap0

description Service module interface to manage the embedded AP

no ip address

arp timeout 0

!

interface Wlan-GigabitEthernet0

description Internal switch interface connecting to the embedded AP

no ip address

!

interface Vlan1

ip address 192.168.1.1 255.255.255.0

ip nat inside

ip virtual-reassembly in

--More--                           !

interface Async1

no ip address

encapsulation slip

!

ip forward-protocol nd

!

!

ip http server

ip http authentication local

no ip http secure-server

ip http timeout-policy idle 60 life 86400 requests 10000

ip nat inside source list 1 interface GigabitEthernet0 overload

ip nat inside source list 101 interface Vlan1 overload

!

access-list 1 permit 192.168.1.0 0.0.0.225

access-list 101 permit ip 192.168.1.0 0.0.0.255 any

!

!

!

!

!

snmp-server community public RO

!

--More--                           control-plane

!

!

!

!

mgcp profile default

!

!

!

!

!

line con 0

line 1

modem InOut

stopbits 1

speed 115200

flowcontrol hardware

line 2

no activation-character

no exec

transport preferred none

transport input all

transport output pad telnet rlogin udptn ssh

line aux 0

--More--                           line vty 0 4

privilege level 15

password

login local

transport input telnet

transport output telnet

line vty 5 15

privilege level 15

login local

transport input telnet

transport output telnet

!

end

891#

Change to

no ip nat inside source list 101 interface Vlan1 overload

Still nothing, if I run the ever so helpful "network diagnostics" on my laptop it states "cannot communicate with DNS server". I'm running Windows 8 btw.

Sent from Cisco Technical Support iPhone App

Hi,

save your config and reload the router.

Regards

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.

I do that at every change.

Sent from Cisco Technical Support iPhone App

Hi,

Can you post the output of ipconfig/all from the PC.

Regards

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.
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