provide internet access

[RadioX]

I have the following configurations

Cisco 7206
Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
ip subnet-zero
!
isdn voice-call-failure 0
!
!
controller T1 2/0
channel-group 0 timeslots 1-24
!
controller T1 2/1
channel-group 0 timeslots 1-24
!
controller T1 2/2
channel-group 0 timeslots 1-24
!
controller T1 2/3
channel-group 0 timeslots 1-24
!
controller T1 2/4
channel-group 0 timeslots 1-24
!
controller T1 2/5
!
controller T1 2/6
!
controller T1 2/7
!
!
!
!
interface FastEthernet0/0
ip address 18.147.47.1 255.255.255.0
no ip directed-broadcast
full-duplex
!
interface Serial1/0
no ip address
no ip directed-broadcast
shutdown
framing c-bit
cablelength 10
dsu bandwidth 44210
!
interface Serial2/0:0
ip address 18.173.3.70 255.255.255.252
no ip directed-broadcast
encapsulation ppp
fair-queue 64 16 0
!
interface Serial2/1:0
ip address 18.173.3.78 255.255.255.252
no ip directed-broadcast
encapsulation ppp
fair-queue 64 16 0
!
interface Serial2/2:0
ip address 18.173.3.74 255.255.255.252
no ip directed-broadcast
encapsulation ppp
fair-queue 64 16 0
!
interface Serial2/3:0
ip address 18.173.3.66 255.255.255.252
no ip directed-broadcast
encapsulation ppp
fair-queue 64 16 0
!
interface Serial2/4:0
ip address 16.28.30.5 255.255.255.252
no ip directed-broadcast
no fair-queue
!
router bgp 4293
network 16.28.31.0
network 18.147.47.0
neighbor 16.24.226.10 remote-as 3561
neighbor 16.24.226.10 ebgp-multihop 3
neighbor 16.24.226.10 update-source FastEthernet0/0
!
ip classless
ip route 0.0.0.0 0.0.0.0 Serial2/0:0
ip route 0.0.0.0 0.0.0.0 Serial2/1:0
ip route 0.0.0.0 0.0.0.0 Serial2/2:0
ip route 0.0.0.0 0.0.0.0 Serial2/3:0
ip route 193.145.243.1 255.255.255.255 Serial2/0:0
ip route 193.145.243.1 255.255.255.255 Serial2/1:0
ip route 193.145.243.1 255.255.255.255 Serial2/2:0
ip route 193.145.243.1 255.255.255.255 Serial2/3:0
ip route 16.28.31.16 255.255.255.240 16.28.30.6
no ip http server
!
end

Cisco1720
Current configuration:
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname ICCore
!
no logging console
!
memory-size iomem 25
ip subnet-zero
!
!
!
!
interface Serial0
ip address 16.28.30.6 255.255.255.252
!
interface FastEthernet0
ip address 16.28.31.17 255.255.255.240
speed auto
full-duplex
!
ip classless
ip route 0.0.0.0 0.0.0.0 Serial0
ip route 16.28.31.16 255.255.255.240 16.28.30.5
no ip http server
end

The cisco1720 used to have internet access from us now when I upgraded from a 3640 to this 7206 with the same configuration they have lost there access. They can see into my network and my router but cannot get out to the internet. Help Please

Thanks
Ron

 

[RadioX]

I can ping into the 1720 and trace into it from other networks but I cannot ping out of it or get any outside access from our of it

 

[shinydonut]

Perhaps you have mismatched encapsulation on the Serial2/4:0 and Serial0 interfaces. I had the same problem before where I could ping and traceroute between the two networks just fine, but when I tried to access the internet, it wouldn't work.