Hello,
not sure if this is a limitation in Packet Tracer, but the multiple 'ip nat inside' on the serial links does not seem to work. The DHCP works if you leave the 'ip nat outside' on the link between R6 and R8. In addition, you need to set the start IP address for the 192.168.1.0/24 network in your DHCP pool to 192.168.1.2 (it is now 192.168.1.0).
R6#sh run
Building configuration...
Current configuration : 1926 bytes
!
version 15.1
no service timestamps log datetime msec
no service timestamps debug datetime msec
service password-encryption
!
hostname R6
!
no logging console
!
enable secret 5 $1$mERr$4dpRATIgxQacPVK0CfNV4/
!
no ip cef
no ipv6 cef
!
username Project password 7 08701E1D5D
!
license udi pid CISCO2811/K9 sn FTX1017EPV9-
!
ip ssh version 2
no ip domain-lookup
ip domain-name Pr.local
!
spanning-tree mode pvst
!
interface FastEthernet0/0
no ip address
ip nat inside
duplex auto
speed auto
!
interface FastEthernet0/0.132
encapsulation dot1Q 132
ip address 10.17.132.254 255.255.255.0
ip helper-address 10.17.45.2
ip nat inside
standby 3 ip 10.17.132.1
standby 3 priority 105
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial0/0/0
ip address 10.17.12.21 255.255.255.252
!
interface Serial0/1/0
ip address 110.0.0.1 255.255.255.252
ip nat outside
!
interface Serial0/2/0
ip address 10.17.12.18 255.255.255.252
clock rate 2000000
!
interface Serial0/3/0
no ip address
clock rate 2000000
shutdown
!
interface Vlan1
no ip address
shutdown
!
router ospf 10
router-id 2.2.2.2
log-adjacency-changes
redistribute bgp 1 subnets
passive-interface FastEthernet0/0
passive-interface FastEthernet0/0.132
network 10.17.12.16 0.0.0.3 area 10
network 10.17.12.20 0.0.0.3 area 10
network 10.17.132.0 0.0.0.255 area 10
!
router bgp 1
bgp log-neighbor-changes
no synchronization
neighbor 110.0.0.2 remote-as 2
network 110.0.0.0 mask 255.255.255.252
redistribute ospf 10
!
ip nat inside source list 1 interface Serial0/1/0 overload
ip classless
!
ip flow-export version 9
!
access-list 1 permit 10.17.0.0 0.0.255.255
access-list 1 permit 172.17.111.0 0.0.0.255
!
no cdp run
!
line con 0
password 7 08701E1D5D
login
!
line aux 0
!
line vty 0 4
password 7 08701E1D5D
login
transport input ssh
!
end
