Question : Upgrading from Cisco 3640 to Cisco 3625

I am in the process of replacing a Cisco 3640 with a Cisco 3825 and am having trouble with the configuration on the 3825. Below is my current configuration on the 3640 and the startup config for the 3825. Could someone please help me figure out how to get the config working on the 3825? Any help would be greatly appreciated.

Cisco 3640 Config:

Using 31835 out of 129016 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname
!
logging buffered 4096 debugging
aaa new-model
aaa authentication login default local group radius
aaa authentication ppp default local group radius
aaa authorization exec default local group radius
aaa authorization network default local group radius
aaa accounting update newinfo
aaa accounting network default start-stop group radius
enable secret 5
enable password 7
!
username admin password 7
ip subnet-zero
ip cef
!
!
ip domain-name
ip name-server
ip name-server
!
vpdn enable
!
vpdn-group 1
!
vpdn-group pppoe
 accept-dialin
  protocol pppoe
  virtual-template 3
 pppoe limit per-vc 2
!
call rsvp-sync
!
!
!
!
!
!
!
!
interface Loopback0
 ip address 111.111.122.38 255.255.255.255
!
interface Ethernet0/0
 description To Office Ethernet
 ip address 111.111.111.1 255.255.254.0
 no ip mroute-cache
 half-duplex
!
interface Serial0/0
 bandwidth 1536
 ip address 111.111.112.1 255.255.255.252
 no ip mroute-cache
 load-interval 30
 no fair-queue
 service-module t1 clock source internal
 service-module t1 timeslots 1-24
!
interface Serial0/1
 bandwidth 1536
 ip address 111.111.113.1 255.255.255.252
 no ip mroute-cache
 load-interval 30
 no fair-queue
 service-module t1 clock source internal
 service-module t1 timeslots 1-24
!
interface Ethernet1/0
 ip address 111.111.114.1 255.255.255.0
 no ip mroute-cache
 half-duplex
!
interface Serial1/0
 bandwidth 1536
 ip address 111.111.115.1 255.255.255.252
 no ip mroute-cache
 load-interval 30
 no fair-queue
 service-module t1 clock source internal
 service-module t1 timeslots 1-24
!
interface Serial1/1
 no ip address
 no ip mroute-cache
 shutdown
!
interface ATM2/0
 no ip address
 no ip mroute-cache
 load-interval 30
 no atm ilmi-keepalive
 scrambling-payload
!
interface ATM2/0.1 multipoint
 pvc 1/32
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/33
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/34
  encapsulation aal5mux ppp Virtual-Template1
 !
 pvc 1/35
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/36
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/37
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/38
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/39
  encapsulation aal5mux ppp Virtual-Template1
 !
!
interface ATM2/1
 no ip address
 no ip mroute-cache
 load-interval 30
 no atm ilmi-keepalive
 scrambling-payload
!
interface ATM2/1.1 multipoint
 pvc 1/32
  encapsulation aal5mux ppp Virtual-Template4
 !
 pvc 1/33
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/34
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/35
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/36
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/37
  encapsulation aal5mux ppp Virtual-Template4
 !
 pvc 1/38
  encapsulation aal5mux ppp Virtual-Template4
 !
 pvc 1/39
  encapsulation aal5mux ppp Virtual-Template4
 !
!
interface ATM2/2
 no ip address
 no ip mroute-cache
 load-interval 30
 no atm ilmi-keepalive
 scrambling-payload
!
interface ATM2/2.1 multipoint
 pvc 1/32
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/33
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/34
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/35
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/36
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/37
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/38
  encapsulation aal5snap
  protocol pppoe
 !
 pvc 1/39
  encapsulation aal5snap
  protocol pppoe
 !
!
interface ATM2/3
 no ip address
 shutdown
 no atm ilmi-keepalive
 no scrambling-payload
!
interface Virtual-Template1
 ip unnumbered Ethernet0/0
 peer default ip address pool a b c e
 ppp authentication pap
!
interface Virtual-Template2
 description Template for Static IP
 ip unnumbered Ethernet0/0
 no peer default ip address
 ppp authentication pap
!
interface Virtual-Template3
 description PPPoE template
 ip unnumbered Ethernet0/0
 ip mtu 1492
 peer default ip address pool a b c e
 ppp authentication pap
 ppp timeout idle 900
!
interface Virtual-Template4
 ip unnumbered Ethernet0/0
 peer default ip address pool a b c e
 ppp authentication pap
!
interface Virtual-Template5
 ip unnumbered Ethernet0/0
 peer default ip address pool a b c e
 ppp authentication pap
!
router bgp 14410
 bgp log-neighbor-changes
 network 111.111.116.0 mask 255.255.255.0
 network 111.111.117.0 mask 255.255.254.0
 network 111.111.118.0
 network 111.111.119.0 mask 255.255.254.0
 network 111.111.120.0
 neighbor 111.111.121.15 remote-as 1239
 neighbor 111.111.121.15 ebgp-multihop 2
 neighbor 111.111.121.15 update-source Loopback0
 neighbor 111.111.121.15 version 4
 neighbor 111.111.121.15 distribute-list 10 in
 neighbor 111.111.121.15 filter-list 9 out
 neighbor 111.111.122.241 remote-as 209
 neighbor 111.111.122.241 version 4
 neighbor 111.111.122.241 distribute-list 10 in
 neighbor 111.111.122.241 filter-list 7 out
 maximum-paths 2
!
ip local pool b 111.111.116.10 111.111.116.142
ip local pool c 111.111.117.180 111.111.127.205
ip local pool a 111.111.118.104 111.111.118.253
ip local pool e 111.111.119.5 111.111.119.180
ip classless
ip route 0.0.0.0 0.0.0.0 Serial0/0
ip route 0.0.0.0 0.0.0.0 Serial0/1
ip route 0.0.0.0 0.0.0.0 Serial1/0
ip route 111.111.121.15 255.255.255.255 Serial0/0
ip route 111.111.121.15 255.255.255.255 Serial1/0
ip route 111.111.122.241 255.255.255.255 Serial0/1
no ip http server
ip as-path access-list 7 deny ^701$
ip as-path access-list 7 deny ^1239$
ip as-path access-list 7 permit .*
ip as-path access-list 9 deny ^701$
ip as-path access-list 9 deny ^209$
ip as-path access-list 9 permit .*
!
access-list 10 deny   any
access-list 101 permit ip host 111.111.117.227 host 111.111.117.235
radius-server host 111.111.116.2 auth-port 1645 acct-port 1646
radius-server retransmit 4
radius-server timeout 15
radius-server key 7
!
dial-peer cor custom
!
!
!
!
line con 0
 exec-timeout 0 0
 transport preferred none
line aux 0
line vty 0 4
 password 7
 transport preferred none
!
end



Cisco 3825 config when new:

Using 2484 out of 491512 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname yourname
!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
!
username admin privilege 15 secret 5
no network-clock-participate wic 0
no network-clock-participate wic 1
no network-clock-participate wic 2
no network-clock-participate wic 3
no network-clock-participate aim 0
no aaa new-model
ip subnet-zero
ip cef
!
!
!
!
ip domain name yourdomain.com
no ftp-server write-enable
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
controller T1 0/0/0
 framing esf
 linecode b8zs
!
controller T1 0/0/1
 framing esf
 linecode b8zs
!
controller T1 0/1/0
 framing esf
 linecode b8zs
!
controller T1 0/1/1
 framing esf
 linecode b8zs
!
controller T1 0/2/0
 framing esf
 linecode b8zs
!
controller T1 0/2/1
 framing esf
 linecode b8zs
!
controller T1 0/3/0
 framing esf
 linecode b8zs
!
controller T1 0/3/1
 framing esf
 linecode b8zs
!
!
!
interface GigabitEthernet0/0
 description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-GE 0/0$
 ip address 192.168.253.10 255.255.255.0
 duplex auto
 speed auto
 media-type rj45
!
interface GigabitEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
 media-type rj45
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.253.1
!
!
ip http server
ip http authentication local
ip http secure-server
ip http timeout-policy idle 600 life 86400 requests 10000
!
!
!
!
control-plane
!
!
!
!
!        
!
!
banner login ^C
-----------------------------------------------------------------------
Cisco Router and Security Device Manager (SDM) is installed on this device.
This feature requires the one-time use of the username "cisco"
with the password "cisco".

Please change these publicly known initial credentials using SDM or the IOS CLI.
Here are the Cisco IOS commands.

username  privilege 15 secret 0
no username cisco

Replace and with the username and password you want to use.

For more information about SDM please follow the instructions in the QUICK START
GUIDE for your router or go to http://www.cisco.com/go/sdm
-----------------------------------------------------------------------
^C
!
line con 0
 login local
 stopbits 1
line aux 0
 stopbits 1
line vty 0 4
 privilege level 15
 login local
 transport input telnet ssh
line vty 5 15
 privilege level 15
 login local
 transport input telnet ssh
!
scheduler allocate 20000 1000
!
end

Answer : Upgrading from Cisco 3640 to Cisco 3625

Well, first major problem I see is that the 3825 has no ATM cards to handle the existing ones on the 3640...

The rest of it should be pretty straight forward...
Both the Ethernet Interfaces should be able to go straight over (assuming those are 10/100/1000 or you have Gig-E ports on whatever they're connected to)

The T1's are done a little differently, first you create the channel-group on the controller then you'll have a new serial interface appear with a channel group tacked on to the end.
 
We'll use Serial0/0 as the example for the 3825:

---1st config the controller with the channel group (0 in this case)---

controller T1 0/0/0
 framing esf
 clock source internal
 linecode b8zs
 channel-group 0 timeslots 1-24

Now you'll have a new serial interface Serial0/0/0:0, so create the serial config as you would normally:
interface Serial0/0/0:0
 bandwidth 1536
 ip address 111.111.112.1 255.255.255.252
 no ip mroute-cache
 load-interval 30
 no fair-queue


Same thing would apply on your existing Serial0/1:

controller T1 0/0/1
 framing esf
 clock source internal
 linecode b8zs
 channel-group 0 timeslots 1-24
!
interface Serial0/0/1:0
 bandwidth 1536
 ip address 111.111.113.1 255.255.255.252
 no ip mroute-cache
 load-interval 30
 no fair-queue

The rest of your routing info should be able to copy straight over as well.