Hi Joamon,
I'm not sure if this is only Windows or what but If you telnet and specify the port number it should log into the server and get a banner of some sort in return to signify that a connection has been made. so that would show that port 25 was open and pointing to the right server.
As for the address range i don't know, i am sure i asked the ISP for a /29 but i don't know how to check, certainly my routing table seems to show a /32, is that right?
Here's my config:
PDC.ADSL#sh run
Building configuration...
Current configuration : 4786 bytes
!
! Last configuration change at 15:09:02 GMT Thu Mar 30 2006 by rayc
! NVRAM config last updated at 15:16:32 GMT Thu Mar 30 2006 by rayc
!
version 12.3
no service pad
service timestamps debug datetime localtime
service timestamps log datetime localtime
no service password-encryption
!
hostname PDC.ADSL
!
boot-start-marker
boot-end-marker
!
logging console critical
enable secret xxxxxxx1
!
no aaa new-model
!
resource manager
!
clock timezone GMT 0
ip subnet-zero
!
!
no ip dhcp use vrf connected
!
!
ip cef
no ip domain lookup
ip name-server xxxxxx
ip name-server xxxxxx
no ip bootp server
ip inspect name DEFAULT100 tcp
ip inspect name DEFAULT100 udp
ip inspect name DEFAULT100 icmp
ip inspect name DEFAULT100 http
no ip ips deny-action ips-interface
!
no ftp-server write-enable
!
!
username xx\x privilege 15 password 7 x
!
!
!
crypto isakmp policy 1
authentication pre-share
group 2
lifetime 7200
crypto isakmp key xxxxxx address xxxxxxxxx
!
crypto ipsec security-association lifetime kilobytes 5242880
crypto ipsec security-association lifetime seconds 1800
!
crypto ipsec transform-set PDCADSL esp-des esp-sha-hmac
!
crypto map pdcvpn 16 ipsec-isakmp
set peer xxxxxxxxx
set transform-set PDCADSL
set pfs group2
match address 151
!
!
!
interface Null0
no ip unreachables
!
interface Ethernet0
description Connected to PDC Local Network
ip address 10.0.0.203 255.255.0.0
ip access-group 102 in
no ip proxy-arp
ip nat inside
ip virtual-reassembly
ip route-cache flow
no cdp enable
hold-queue 100 out
!
interface Ethernet2
no ip address
shutdown
hold-queue 100 out
!
interface ATM0
description Connected to ADSL Circuit
no ip address
no ip mroute-cache
atm vc-per-vp 64
no atm auto-configuration
no atm ilmi-keepalive
no atm address-registration
no atm ilmi-enable
dsl operating-mode auto
pvc 0/38
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
!
interface FastEthernet1
no ip address
duplex auto
speed auto
!
interface FastEthernet2
no ip address
duplex auto
speed auto
!
interface FastEthernet3
no ip address
duplex auto
speed auto
!
interface FastEthernet4
no ip address
duplex auto
speed auto
!
interface Dialer1
description Connected to ADSL Circuit
bandwidth 1000
ip address negotiated
ip access-group 100 in
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
ip inspect DEFAULT100 out
ip virtual-reassembly
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication pap chap callin
ppp chap hostname xxxxxxxx
ppp chap password 7xxxxxxxx
ppp pap sent-username xxxxxxxx password 7 xxxxxxxx
ppp ipcp dns request
ppp ipcp wins request
crypto map pdcvpn
hold-queue 224 in
!
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
!
no ip http server
no ip http secure-server
!
ip nat inside source list 102 interface Dialer1 overload
ip nat inside source static tcp 10.0.0.4 1494 interface Dialer1 1494
ip nat inside source static tcp 10.0.0.1 25 interface Dialer1 25
!
access-list 10 permit 1xxxx
access-list 10 remark Telnet Access
access-list 10 permit 19xxxxxx 0.0.0.15
access-list 10 permit 10.0.0.0 0.255.255.255
access-list 100 remark ----- Inbound ACL -----
access-list 100 permit ahp host xxxxxxxx 0.0.0.0 xxxxxxxx9
access-list 100 permit esp host xxxxxxxx 0.0.0.0 xxxxxxxx9
access-list 100 permit udp host xxxxxxxx 0.0.0.0 xxxxxxx9 eq isakmp
access-list 100 permit udp host xxxxxxxx 0.0.0.0 xxxxxxxx eq non500-isakmp
access-list 100 permit ip host xxxxxxxx any
access-list 100 deny ip any any
access-list 102 deny ip 10.0.0.0 0.0.255.255 10.2.0.0 0.0.255.255
access-list 102 permit ip 10.0.0.0 0.255.255.255 any
access-list 151 remark VPN Access
access-list 151 permit ip 10.0.0.0 0.0.255.255 10.2.0.0 0.0.255.255
dialer-list 1 protocol ip permit
no cdp run
!
!
control-plane
!
banner login ^CC Authorised users only, all access is logged.^C
!
line con 0
exec-timeout 300 0
login local
no modem enable
transport preferred all
transport output telnet
stopbits 1
line aux 0
login local
transport preferred all
transport output telnet
stopbits 1
line vty 0 4
session-timeout 15 output
access-class 10 in
exec-timeout 100 0
password 7 xxxxxxxxxxxxxx
login local
transport preferred all
transport input telnet ssh
transport output all
!
no scheduler max-task-time
scheduler interval 500
sntp server 10.0.0.22
end