DSL static and negotiate IP

[Rojer-bkk]

Hi,

I'm in doubt when i saw client configure. Can DSL router configure both static IP address on ATM interface and negotiate on dialer interface? I'm not sure configuration is correct or not especially default route?

interface ATM0.1 point-to-point
ip address <IP-address> <subnet mask>
ip nat outside
pvc 0/35
  oam-pvc 0
  encapsulation aal5snap
  pppoe-client dial-pool-number 1
!

interface Dialer1
ip address negotiated
ip access-group 111 in
ip mtu 1492
ip nat outside
ip inspect myfw out
encapsulation ppp
ip tcp adjust-mss 1452
dialer pool 1
dialer remote-name redback
dialer-group 1
ppp authentication chap pap callin
ppp chap hostname xxxx
ppp chap password 0 xxxx
ppp pap sent-username xxxx password xxxx
ppp ipcp dns request
ppp ipcp wins request

!

ip nat inside source list 102 interface Dialer1 overload
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
ip route 0.0.0.0 0.0.0.0 ATM0.1

!

Thanks

[Latchum Naidu]

Hi,

Yes, the DSL router can be configured both static IP address for ATM and negotiate on dialer interface.
Regarding your configuration check, find the below link for more information.

http://www.cisco.com/en/US/tech/tk175/tk15/technologies_configuration_example09186a008071a67e.shtml

And once you get the static IP for ATM then change the default route like below to avoid broadcast.

ip route 0.0.0.0 0.0.0.0 ***ATM int IP adds*** instead ip route 0.0.0.0 0.0.0.0 ATM0.1

Please rate if this helped you...

Regards,
Naidu.

[Rojer-bkk]

Hi Naidu,

As you document explained regards static IP address on dialer interface.

As configuration posted, Dynamic IP will be bound to dialer interface meanwhile ATM interface already static IP assigned. Actually, Cisco document will separate solution between static and dynamic that why i'm confused two solutions in this configuration and which default route i should point to interface ATM or dialer.

[Latchum Naidu]

Hi,

Yes, as we were seeing many dialer interfaces have dynamic IP which is ok.

And you ATM interface is already have static IP which is good and you can piont your default route to this and it is fine as per best practices.

Hope this is clear to you...

Regards,

Naidu.