No internet connection with BTnet GEA with Cisco 890

[BungeeDesign]

I recently had a BTnet GEA installed along with the provided Cisco 890 router. At the moment I can’t seem to get a internet connection everything is connected up, the VDSL from the BT socket goes into the VDSL port on the router. They left a ethernet cable plugged into the wan port. When I plug into one of the lan ports I get no internet Connection (Is this due to my device not being authenticated for 802.1X?). I wasn’t planning to use the router as the main device as in the 890 then the a switch etc. What I want to do is to connect the Ubiquity USG which is what I did, I connected the ethernet cable that is plugged into the Wan port on the 890 into the wan port on the USG and still no internet. Am I doing something wrong? 

I previously setup the Ubiquity gear (USG/UAP Pro/UAP Lite) at home via the standard BT provided modem and I got an internet connection.

[Philip D'Ath]

I'm not familiar with the Internet in your country. What kind of connection are you meant to be using? Static IP configuration, DHCP, PPPoE? More than likely you are using one when you should be using the other.

[BungeeDesign]

I think it's a static IP.

[Philip D'Ath]

Has the correct static IP address, subnet mask and default gateway been configured?

[BungeeDesign]

This is what I have put into the UniFi controller. 

Info from BTnet:
IPV4 Network Address: 194.x.x.162

IPV4 Network Mask - 255.255.255.240 

IPV4 Network Router Address: 194.x.x.163

It would not let me enter the network mask (255.255.255.240) into the subnetmask so I put in the default one.

[Philip D'Ath]

Can the UniFi controller ping 194.x.x.163?

[Georg Pauwen]

Hello,

in addition to Philip's posts, the configuration of the 890 differs considerably depending on whether you connect it directly to the BT socket (that is, when your 890 is the device directly connected to the Internet), or whether you connect the 890 to the Ubiquity (and the Ubiquity is the device connected to the Internet).

In the first case, the 890 is doing the NAT, in the latter, the Ubiquity is doing the NAT (unless you set it to bridge mode)

Which 890 do you have (892 ISR, 892F, 892W, 892FSP? ?

[BungeeDesign]

I think it’s the 892FSP.

[BungeeDesign]

Would I set the 890 in bridge mode or the Ubiquity - I’m not sure it has a bridge mode option? Surely I should get a internet connection with just the Cisco 890 by plugging into one of the lan ports as the internet is going straight into it?

[Georg Pauwen]

Hello,

so actually you have three options:

1. Internet <-- 892FSP

2. Internet <-- Ubiquity <-- 892FSP

3. Internet <-- Ubiquity (Bridge Mode) <-- I892FSP

Let's start with option 1. You need to connect the BT handoff to FastEthernet8, that is the WAN port. In this configuration, the router is configured as DHCP server and will dish out IP addresses in the 192.168.1.0/24 address range.

hostname 892FSP
!
boot-start-marker
boot config usbflash0:CVO-BOOT.CFG
boot-end-marker
!
no aaa new-model
clock timezone PST -8 0
!
ip cef
!
ip dhcp excluded-address 192.168.1.1
!
ip dhcp pool VLAN1
import all
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
dns-server 8.8.8.8 8.8.4.4
!
no ip domain lookup
!
no ipv6 cef
!
multilink bundle-name authenticated
!
license udi pid CISCO892-K9 sn FCZ1714C2ZD
!
username admin privilege 15 secret cisco
!
redundancy
!
ip ssh version 2
!
interface BRI0
no ip address
encapsulation hdlc
shutdown
isdn termination multidrop
!
interface FastEthernet0
no ip address
!
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
ip virtual-reassembly in
load-interval 30
duplex auto
speed auto
!
interface GigabitEthernet0
no ip address
shutdown
duplex auto
speed auto
!
interface Vlan1
description LAN
ip address 192.168.8.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
ip dns server
ip nat inside source list 1 interface FastEthernet8 overload
ip route 0.0.0.0 0.0.0.0 FastEthernet8
!
ip access-list 1 permit 192.168.1.0 0.0.0.255
!
control-plane
!
mgcp profile default
!
line con 0
logging synchronous
line aux 0
line vty 0 4
exec-timeout 5 0
login local
transport input ssh
!
end

[BungeeDesign]

Ok I’ll try this on Monday. Would I need to use the CLI to do this via a console connection or would this be done via a USB Flashback? Also is there any way the config could be to have the internet going into the 890 and then the wan from the 890 into the USG and then the switch into the lan on the USG so internet > 890 > USG > switch (if the USG or the 890 was in bridge mode or with NAT disabled).

I also have a BT engineer coming on Monday, do you think they’ll be able to sort the issue out?

Thanks for your help by the way much appreciated!

[BungeeDesign · Accepted solution]

Hi, I have managed to get a successful internet connection with my original config. Firstly the router that I have is the Cisco 897VA, the issue was that the router wasn’t commissioned properly. Once that had been done by the BTnet guys and I put in all of the relevant info IPs/Gateways and subnet mask /DNS and I have internet through the USG!! Apperticate everyone who helped!