开云体育

As far as I understand, if you call an address that doesn't match any explicit 'x25 route', IOS will by default route it through either Se0/0 or "the first X.25-capable interface" (I am not sure which).

That is, Serial0/0 is your implicit "default route" on IOS.

I *think* you can add an explicit reject at the end of your routing table using:

? ? x25 route .* clear

I haven't tested this yet.

!
version 12.1
no service single-slot-reload-enable
service pad to-xot
service pad from-xot
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname
!
logging rate-limit console 10 except errors
enable secret 5 $1$ARw/$HyvEhZULktN8tKEGq6Fjt1
!
ip subnet-zero
no ip routing
!
!
no ip finger
ip domain-name
ip name-server 192.168.23.1
!
x25 routing
!
!
!
interface Ethernet0/0
?ip address 192.168.23.2 255.255.255.0
?no ip route-cache
?no ip mroute-cache
?half-duplex
?no cdp enable
!
interface Serial0/0
?description Sun SPARCstation IPX
?no ip address
?encapsulation x25 dce
?no ip route-cache
?no ip mroute-cache
?x25 address 23000100
?clockrate 9600
?no cdp enable
!
interface BRI0/0
?no ip address
?no ip route-cache
?no ip mroute-cache
?shutdown
?no cdp enable
!
interface Serial0/1
?description VAX 4000-105A EUGENE::
?no ip address
?encapsulation x25 dce
?no ip route-cache
?no ip mroute-cache
?x25 address 23000100
?clockrate 9600
?no cdp enable
!
ip default-gateway 192.168.23.1
ip classless
no ip http server
!
logging facility local4
logging source-interface Ethernet0/0
logging 192.168.178.11
no cdp run
x25 route ^230003.. interface Serial0/0
x25 route ^230002.. interface Serial0/1
x25 route ^(...)(...) xot dns \2.\
x25 route .* clear
x25 host address 23000100
!
line con 0
?transport input none
line aux 0
line vty 0 4
?password cisco
?login
!
no scheduler allocate