10-19-2005 08:47 AM - edited 03-03-2019 10:46 AM
Hello everybody,
I try to connect a 837 Router by an ADSL connection via a DSLAM to a 2610. (using PPPoA) On the network side I have a separate DNS running which can be reached from the 2610 (working as NAS) The ADSL connection seems to work properly. When I test the connection with the integrated tool in SDM I get the following error message:
"No configured DNS server(s) are routable through the selected interface. "
In details I can see that providing the IP from the NAS by IPCP seems to work. So it looks like a routing problem ?
Here is the config of the 837:
!
version 12.3
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname ADSL-Router
!
boot-start-marker
boot-end-marker
!
no logging buffered
enable secret xxxxx
enable password xxxxx
!
no aaa new-model
ip subnet-zero
no ip routing
!
!
ip dhcp excluded-address 10.10.10.1
ip dhcp excluded-address 10.10.10.6 10.10.10.254
!
ip dhcp pool Local
import all
network 10.10.10.0 255.255.255.0
lease infinite
!
!
ip domain lookup source-interface ATM0.2
ip ips po max-events 100
no ftp-server write-enable
!
!
no crypto isakmp ccm
!
!
interface Ethernet0
ip address 10.10.10.1 255.255.255.0
no ip route-cache
hold-queue 100 out
!
interface ATM0
no ip address
no ip route-cache
no atm ilmi-keepalive
dsl operating-mode auto
!
interface ATM0.2 point-to-point
no ip route-cache
pvc 1/32
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
!
interface FastEthernet1
speed auto
full-duplex
!
interface FastEthernet2
shutdown
duplex auto
speed auto
!
interface FastEthernet3
shutdown
duplex auto
speed auto
!
interface FastEthernet4
shutdown
duplex auto
speed auto
!
interface Dialer0
ip address negotiated
ip nat inside
ip virtual-reassembly
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication chap callin
ppp chap hostname xxxxxx
ppp chap password 0 xxxxxx
ppp ipcp dns request
!
ip classless
ip route 0.0.0.0 0.0.0.0 ATM0.2
!
ip http server
no ip http secure-server
!
!
dialer-list 1 protocol ip permit
!
control-plane
!
!
line con 0
no modem enable
line aux 0
line vty 0 4
password xxxxx
login
transport input telnet
transport output telnet
!
scheduler max-task-time 5000
end
Here is the config of the 2610:
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
no service dhcp
!
hostname NAS-Router
!
boot-start-marker
boot-end-marker
!
enable secret 5 xxxxx
enable password xxxxx
!
no aaa new-model
ip subnet-zero
ip cef
!
!
ip domain lookup source-interface Ethernet0/0
ip domain name mydomain.com
ip name-server 192.168.14.2
!
!
!
!
username xxxxx password 0 xxxxx
username xxxxx password 0 xxxxx
!
!
controller E1 0/0
mode atm
!
!
interface Ethernet0/0
ip address 192.168.14.1 255.255.255.0
half-duplex
no cdp enable
!
interface ATM0/0
no ip address
no atm ilmi-keepalive
pvc 8/35
encapsulation aal5mux ppp Virtual-Template1
!
!
interface Virtual-Template1
ip unnumbered Ethernet0/0
peer default ip address pool kunden_isp1
ppp authentication chap
ppp ipcp dns 192.168.100.2
!
ip local pool kunden_isp1 192.168.100.3 192.168.100.254
ip http server
ip classless
ip route 192.168.100.0 255.255.255.0 ATM0/0
!
!
!
line con 0
exec-timeout 0 0
line aux 0
line vty 0 4
password xxxxx
login
!
!
end
I would really appreciate your help.
Regards,
Chris
10-19-2005 10:00 AM
Chris
I believe that SDM is expecting a configured DNS server and perhaps a configured domain name on the remote router similar to what you have configured on the head end router.
ip domain name mydomain.com
ip name-server 192.168.14.2
HTH
Rick
10-19-2005 11:01 AM
Hi Rick,
thanks for the answer.
But I would like to simulate a client who is not provided with any DNS information at all by his ISP. So maybe it would make sense to use DHCP on the NAS rather than IPCP ?
Chris
10-20-2005 07:22 AM
It seems to be a problem related to SDM, when I do everything straight in IOS it seems to work ... I get the propper IP address and DNS by IPCP ...
Still I can not ping anything on the remote side in no direction. What do I miss in the above settings ? I can not get the thing done.
I would highly appreciate your help.
Regards,
Chris
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