ISDN DDR with Aux port

[SimonV]

Hi

I have a Cisco router that only has an Aux port available. I would like to be able to setup ISDN DDR. IS this possible and if so what do I need to do?

thanks in advance

 

[trevorh13]

Not through the aux port as far as I am aware. I believe that you can get a Terminal adapter that you would connect the routers serial port too that would gvie you isdn connectivity although I have never set it up myself.

 

[ADB100]

It would be possible through the AUX port but you would need an asynchronous Terminal Adapter. The port would have to be configured the same as if you were attaching a modem. You may also have to create a custom 'Modemcap' entry for the correct 'AT' commands for your ISDN TA.

HTH

Andy

 

[COMPUTERTECH33]

I have this almost working with a 1750 on an AUX port.

It will dial out when E0 is down or disconnected. I just can't browse the internet. I can ping Internet sites and our internal/external DNS servers. And I can ping internal computers by computer name, so I know WINS is working.

Hope this helps. Let me know if you get it working.

Thanks


interface Ethernet0
backup delay 10 60
backup interface Async5
ip address xxxxxxxxxxxx 255.255.255.248
ip nat outside
no ip route-cache
no ip mroute-cache
half-duplex
crypto map nolan
!
interface FastEthernet0
ip address 192.168.17.1 255.255.255.0
ip helper-address 172.17.2.30
ip helper-address 172.17.2.255
ip helper-address 172.17.255.255
ip helper-address 172.16.255.255
ip directed-broadcast
ip nat inside
no ip route-cache
no ip mroute-cache
speed auto
!
interface Async5
ip address 170.1.1.16 255.255.0.0
encapsulation ppp
keepalive 10
dialer in-band
dialer idle-timeout 300
dialer string xxxxxxxxxxx
dialer-group 1
fair-queue 64 16 0
ppp authentication chap
!
interface Dialer1
no ip address
no cdp enable
!
ip nat inside source route-map nonat interface Async5 overload
ip kerberos source-interface any
ip classless
no ip forward-protocol udp netbios-ns
no ip forward-protocol udp netbios-dgm
ip forward-protocol udp netbios-ss
ip forward-protocol udp 42508
ip route 0.0.0.0 0.0.0.0 xxxxxxxx...Ip of E0
ip route 0.0.0.0 0.0.0.0 Async5 200
no ip http server
!
no logging trap
logging facility local0
logging 172.17.1.31
access-list 3 permit any
access-list 110 deny ip 192.168.17.0 0.0.0.255 172.16.0.0 0.0.255.255
access-list 110 deny ip 192.168.17.0 0.0.0.255 172.17.0.0 0.0.255.255
access-list 110 permit ip 192.168.17.0 0.0.0.255 any
access-list 120 permit ip 192.168.17.0 0.0.0.255 172.16.0.0 0.0.255.255
access-list 120 permit ip 192.168.17.0 0.0.0.255 172.17.0.0 0.0.255.255
access-list 121 permit ip 192.168.17.0 0.0.0.255 172.16.0.0 0.0.255.255
access-list 121 permit ip 192.168.17.0 0.0.0.255 172.17.0.0 0.0.255.255
access-list 150 permit esp host xxxxxxx host 0.0.0.0
access-list 150 permit udp host xxxxxxx host 0.0.0.0 eq isakmp
access-list 150 permit ip any 192.168.16.0 0.0.0.255
access-list 150 permit ip any 192.168.17.0 0.0.0.255
priority-list 1 protocol ip high
dialer-list 1 protocol ip permit
route-map nonat permit 10
match ip address 110
!
snmp-server engineID local xxxxxxxxxxxxxx
snmp-server community xxxx RO
banner motd ^CCC
xxxxxxxxxxx
Unauthorized access is prohibited
Violators will be prosecuted
xxxxxxxxxx
^C
!
line con 0
password 7 xxxxxxx
login
transport input none
line aux 0
password 7 xxxxxxxxxxxx
autoselect ppp
modem InOut
modem autoconfigure discovery
transport input all
autohangup
speed 115200
flowcontrol hardware
line vty 0 4
access-class 3 in
password 7 xxxxxxxxxxx
login
!

 

[SimonV]

Does that work with just one channel or both? Isn't the max speed of the port below 128k?

cheers

Simon

 

[COMPUTERTECH33]

You talking about bother interfaces? Like ethernet0 or fastethernet0?