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ADSL router setup for BT FTTC

carl_townshend
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Hi All

Has anyone got a base config for an ADSL router for BT, the connection is FTTC (fiber to the cab), using the RJ11 interface on the router.

I have seen a few different flavours of configurations.

Can someone share what the correct one looks like?

Would you use PPPOA or PPPOE?

Also, the physical interface for the ADSL connection, is this classed as ATM0 on the router?

Many thanks

 

 

 

5 Replies 5

Hello,

 

BT Infinity uses PPPoE, typically. Which router model do you have ?

Hi Georg

It is an 887VA

Does it still use ATM? if so is it using PPPOEOA?

 

Have you got an example config for this kind of router for the pppoe? cheers

 

Hello,

 

below is a sample configuration, not sure if it works, you might have to tweak it...

 

version 15.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname BT_8867
!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
!
aaa new-model
!
aaa session-id common
wan mode dsl
!
no ip domain lookup
ip cef
no ipv6 cef
!
ip dhcp excluded-address 192.168.1.1
!
ip dhcp pool LAN
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
dns-server 8.8.8.8 4.2.2.2
!
controller VDSL 0
operating mode vdsl2
no cdp run
!
interface ATM0
no ip address
no atm ilmi-keepalive
!
interface ATM0.1 point-to-point
description *BT FTTC*
pvc 8/35
encapsulation aal5snap
pppoe-client dial-pool-number 1
!
interface Ethernet0
description *BT FTTC*
ip address dhcp
ip mtu 1452
ip nat outside
ip virtual-reassembly in
no cdp enable
!
interface FastEthernet0
no ip address
!
interface FastEthernet1
no ip address
!
interface FastEthernet2
no ip address
!
interface FastEthernet3
no ip address
!
interface GigabitEthernet0
no ip address
!
interface GigabitEthernet1
no ip address
shutdown
duplex auto
speed auto
!
interface Vlan1
description $ETH_LAN$
ip address 192.168.1.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
ip tcp adjust-mss 1412
!
interface Dialer1
ip address negotiated
ip mtu 1452
ip nat outside
ip virtual-reassembly in
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication pap callin
ppp chap refuse
ppp pap sent-username <BT username> password <BT password>
no cdp enable
!
ip forward-protocol nd
ip http server
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
!
ip nat inside source list 1 interface Dialer1 overload
ip route 0.0.0.0 0.0.0.0 Dialer1
!
dialer-list 1 protocol ip permit
mac-address-table aging-time 10
!
access-list 1 permit ip 192.168.1.0 0.0.0.255 any
!
line con 0
no modem enable
line aux 0
line vty 0 4
privilege level 15
transport input ssh
!
scheduler allocate 60000 1000
!
end

Hi

with your config example, what is the Ethernet 0 interface for?

We use the RJ11 connection from the telephone line.

The config we have on ours that works currently is

 

bba-group pppoe global
!
!
interface ATM0
no ip address
no ip redirects
no ip proxy-arp
ip flow ingress
atm vc-per-vp 64
no atm ilmi-keepalive
pvc 0/38
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
!
interface Ethernet0
no ip address
!
interface Ethernet0.101
encapsulation dot1Q 101
pppoe enable group global
pppoe-client dial-pool-number 1
!

interface Dialer1
description xxxx
mtu 1492
ip tcp adjust-mss 1452
ip address negotiated
ip access-group Access_in in
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
ip inspect infire out
ip virtual-reassembly in
encapsulation ppp
dialer pool 1
dialer-group 1
no cdp enable
ppp authentication chap callin optional
ppp chap hostname xxxx
ppp chap password xxxx
hold-queue 224 in

 

how come it is different than yours?

 

I am confused around the ethernet 0 interface.

 

Also is it still using ATM?

Hello,

 

you were asking for a sample configuration, the caveat was that you probably would have to tweak it. There are different ways to connect this router. The config I posted is one option.

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