interface dummy0
 ipv6 nd suppress-ra
!
interface eth0
 description TWE LAN
 ip address 111.114.233.2/26
 ip ospf message-digest-key 1 md5 hohohoho
 ipv6 nd suppress-ra
!
interface eth1
 description DSLAM LAN
 ipv6 nd suppress-ra
!
interface eth1.20
 ipv6 nd suppress-ra
!

..... ppp interfaces
interface ppp151
!
router ospf
 ospf router-id 10.20.20.169
 redistribute kernel route-map CHRIS
 redistribute connected route-map CHRIS
 redistribute static route-map CHRIS
 network 10.20.20.169/32 area 0.0.0.90
 network 111.114.233.0/26 area 0.0.0.90
 area 0.0.0.90 authentication message-digest
 area 0.0.0.90 nssa translate-candidate
 distribute-list CHRIS out kernel
 distribute-list CHRIS out connected
 distribute-list CHRIS out static
 default-information originate route-map CHRIS
!
ip route 111.115.146.0/23 Null0
!
access-list 30 permit 111.115.146.0 0.0.0.255
access-list 33 permit any
!
ip prefix-list CHRIS seq 5 permit any
ip prefix-list DENY<24 seq 5 permit 0.0.0.0/0 le 24
ip prefix-list DENY_ALL description Deny all the Network
ip prefix-list DENY_ALL seq 5 deny 0.0.0.0/0 le 32
ip prefix-list MATCH/32 seq 5 deny 0.0.0.0/0 ge 31
ip prefix-list PERMIT_ANY>24 seq 5 permit 0.0.0.0/0 le 24
ip prefix-list PERMIT_ANY_LESS_24 seq 5 permit 0.0.0.0/0 ge 24
!
route-map NOT_VIA_OSPF deny 10
 match interface eth0
!
route-map NOT_VIA_OSPF deny 20
 match ip address prefix-list MATCH/32
!
route-map NOT_VIA_OSPF permit 30
 match ip address 33
!
route-map CHRIS deny 5
 match ip address prefix-list CHRIS
!
ip forwarding
!
line vty
!