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Question:

Just got WS-C3560V2-24TS-S my fiber connection at home, but still have my old 878 cisco router.
Is it possible to use it for making the PPP connection to my provider. ?

I understand i have fa0 - fa3

fa0 will be used for internal interface (have received 8 ip addresses from my provider) and fa3 for the connection to fiber switch.

normaly i configure on fa3 no ip address and on fa0 i would configure the main ip with the subnet. together with the dialer i will get it working.

(done the config on real routers.. 2801)..

do I configure here the main ip on vlan 1 and then just hookup the connection to the switch with fa0 ?

Thoughs are welcome.
will the below config work ?

interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
description connection to fiber
duplex full
speed 100
pppoe enable group global
pppoe-client dial-pool-number 1

nterface Vlan1
ip address 37.x.x.x 255.255.255.240
ip tcp adjust-mss 1452
!
interface Dialer1
mtu 1492
ip unnumbered Vlan1
no ip redirects
no ip unreachables
no ip proxy-arp
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication pap callin
ppp pap sent-username xxxxxxxxxxxx password 0 xxxxxxxxxxx
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Dialer1
no ip http server
no ip http secure-server

Answer:

You best choice is to WS-C3560V2-48TS-S Price get a newer faster router, possibly from the small business or residential.