857w router help

glen-c999 · ‎11-10-2011

Hi all,

I've just picked up a new Cisco 857w router and I'm having some diffuculty setting it up.

As far as I understand the device ships with minimal configuration already present.

I am able to connect via console and have access to the IOS.

Cisco IOS Software, C850 Software (C850-ADVSECURITYK9-M), Version 12.4(6)T10, RELEASE SOFTWARE (fc4)

I'm having trouble with DHCP. According to the documentation it shipped with it is configured as a DHCP server but it doesn't seem to be issuing IP addresses on its ethernet ports.

I have enabled the ports (no shutdown on those interfaces)

The green LED on eth 1 lights up when I connect a cable to my laptop

The laptop is configured to have an IP address assigned automatically by the DHCP server for its wired ethernet port.

So, the question is, Do I need to configure the router as a DHCP server? I am trying to find its IP address so I can connect to the GUI.

Also, theres a clicking/switching sound coming from it at regular intervals roughly once a minute, is this normal?

Thanks

cadet alain · ‎11-10-2011

Hi,

I never remember the default settings for these routers.

just do sh run and you'll see what you want.the Fastethernet ports are switchports and you have to configure interface vlan 1 like this:

interface vlan 1

ip address 192.168.1.1 255.255.255.0

ip dhcp excluded-address 192.168.1.1

ip dhcp pool mypool

network 192.168.1.0 /24

default-router 192.168.1.1

Then you'll have your clients getting a dhcp address.

Regards.

Alain

Don't forget to rate helpful posts.

glen-c999 · ‎11-10-2011

Hi Alain,

Thanks for that. I entered all those details as you've given me. I've saved the config and reloaded the router. This is what I see:

>show ip interface brief

Interface IP-Address OK? Method Status Protocol

Dot11Radio0 unassigned YES TFTP administratively down down

Dot11Radio0.1 unassigned YES unset administratively down down

FastEthernet0 unassigned YES unset up down

FastEthernet1 unassigned YES unset up up <-- I'm connected here but you can see no IP address was assigned.

#show ip interface fastEthernet 1

FastEthernet1 is up, line protocol is up

Internet protocol processing disabled

Under windows the IP address is the 169.254.119.208 default assignment.

In vlan 1 interface config mode there are a few other dhcp options listed, is there more required to be set up? :

dhcp Configure DHCP server and relay parameters

dhcp-client Configure parameters for DHCP client operation

dhcp-server Specify target DHCP server parameters

Thanks

Leo Laohoo · ‎11-10-2011

int f1

spanning-tree portfast

glen-c999 · ‎11-10-2011

Thanks Leolaohoo,

I did that and below is the console output:

(config-if)#spanning-tree portfast

%Warning: portfast should only be enabled on ports connected to a single host.

Connecting hubs, concentrators, switches, bridges, etc.to this interface

when portfast is enabled, can cause temporary spanning tree loops.

Use with CAUTION

%Portfast has been configured on FastEthernet1 but will only

have effect when the interface is in a non-trunking mode.

Whats next?

Leo Laohoo · ‎11-10-2011

That's message you see is just a "disclaimer". Translation: Are you REALLY, REALLY sure you want to enable portfast?

Don't worry and ignore it.

Next, you try to disconnect and reconnect the link or you can try "ipconfig /release" and "ipconfig /renew" and see if it works.

johnlloyd_13 · ‎11-10-2011

hi glen,

you haven't configured the SVI interface as alain suggested. this will be the default gateway for your FE ports. try to do as what he suggested and try again.

857(config)#interface vlan 1

857(config-if)#ip address 192.168.1.1 255.255.255.0

as for the clicking sound, it's not normal. you should ask your vendor to replace it.

leo,

i don't think portfast has something to do with OP's DHCP issue.

edit - just re-read your post. could you post the entire show ip interface brief output and show interface vlan 1? ensure it's up/up

Message was edited by: John Lagura

glen-c999 · ‎11-11-2011

Sure, here you are:

#show ip interface brief

Interface IP-Address OK? Method Status Protocol

Dot11Radio0 unassigned YES TFTP administratively down down

Dot11Radio0.1 unassigned YES unset administratively down down

FastEthernet0 unassigned YES unset up down

FastEthernet1 unassigned YES unset up up

FastEthernet2 unassigned YES unset up down

FastEthernet3 unassigned YES unset up down

ATM0 unassigned YES NVRAM initializing down

Vlan1 192.168.1.1 YES NVRAM up up

Loopback0 192.169.3.1 YES manual up up

johnlloyd_13 · ‎11-11-2011

Hi Glen,

Your 857 ports looks ok. Could you post show run | s dhcp and show ip dhcp binding from the router?

Are you still getting the 169.254.x.x IP? Try swaping UTP cable and use another latop/PC.

Sent from Cisco Technical Support iPhone App

glen-c999 · ‎11-11-2011

r#show running-config | s dhcp

no ip dhcp use vrf connected

ip dhcp excluded-address 192.168.1.1

ip dhcp pool mypool

import all

network 192.168.1.0 255.255.255.0

default-router 192.168.1.1

domain-name companyname.com

ip dhcp update dns

ip dhcp client update dns

#show ip interface brief

Interface IP-Address OK? Method Status Protocol

Dot11Radio0 unassigned YES TFTP administratively down down

Dot11Radio0.1 unassigned YES unset administratively down down

FastEthernet0 unassigned YES unset up down

FastEthernet1 unassigned YES unset up down

FastEthernet2 unassigned YES unset up up

FastEthernet3 unassigned YES unset up down

ATM0 unassigned YES NVRAM initializing down

Vlan1 192.168.1.1 YES NVRAM up up

Loopback0 192.169.3.1 YES NVRAM up up

BVI1 192.168.2.1 YES NVRAM up up

Virtual-Dot11Radio0 unassigned YES TFTP administratively down down

Virtual-Dot11Radio0.1 unassigned YES unset administratively down down

Ive now used a brand new UTP cable, same result.

I can only use this laptop as I'm waiting for a USB to DB9 adapter cable that supports 64 bit to arrive. The others are 64 bit which dont support the current cable, its not a genuine Prolific chipset.

Thanks

johnlloyd_13 · ‎11-11-2011

Hi Glen,

Kindly post show run int vlan 1 and show ip dhcp binding output.

Do you see any LED light ON in front of the router (Ethernet LAN 1) and on your laptop's NIC?

Going back on the "clicking" sound. Does it comes from the router?

Sent from Cisco Technical Support iPhone App

ALIAOF_ · ‎11-11-2011

Try these commands, this should get it going.

"bridge crb"

"bridge 1 route ip"

glen-c999 · ‎11-13-2011

Hi,

I did that, I got the message saying that bridge crb was already configured. So I negated it, then renabled it using "bridge crb" and also entered "bridge 1 route ip"

Still the same, got the windows 169.254.xxx.xxx IP

ALIAOF_ · ‎11-14-2011

Not sure if you already have this or not but try this too:

bridge 1 protocol ieee (add this to the existing commands already in the router)

!

interface vlan 1 (you are telling VLAN 1 that it is part of the bridge group 1 and hence all the ports)

bridge-group 1

Also I noticed that you have VLAN 1 on 192.168.1.0/24 network and BVI1 on 192.168.2.0/24 network I believe the both need to have the same IP. Now when you connect anything to the ports they should grab an IP address.

Hope this helps. Let us know

jimmysands73_2 · ‎11-14-2011

I am curious, why would he need a bridging command to pull an IP from a local fa connection, but I am also not very familiar with setting DHCP this way (except where I did once on a 2811 and we did not need any bridgeing command).

Can you also post the run from fa1?