Re: OT: Bridging ADSL

Hi Carlos,

At home it's just standard ADSL, not ATM. I don't really understand why
you don't need the dialer interface for it.

Afraid the other ISP is PPPoA not PPPoE

Thanks for your input,
Paul

On 11/02/2011 10:53, Carlos G Mendioroz wrote:
> Paul,
> at home it seems you are getting IP over ATM.
> But now, with the dialer interface, you might be using PPPoA or PPPoE.
> In the first case, I guess you are OOL.
> If PPPoE, you could bridge at the CPE and terminate the pppoe link
> directly at the ASA.
>
> http://www.cisco.com/en/US/products/ps6120/products_configuration_example09186a0080ab7ce9.shtml
>
>
> -Carlos
>
>
> Paul Cocker @ 10/02/2011 15:22 -0300 dixit:
>> Hi,
>>
>> Sort of off topic, but interesting to me :-) I wonder if anyone has
>> any experience of this.
>>
>> At home i like to run an ASA with the real outside address, so I use
>> this setup to bridge the ATM interface to the ethernet. The ASA then
>> just picks up an IP with DHCP. I also get a 2nd IP off the BVI
>> interface. My ISP doesn't require PPP.
>>
>> ----------------------------------------------
>> bridge irb
>> bridge 5 protocol ieee
>> bridge 5 route ip
>>
>> !
>> interface ATM0
>> no ip address
>> no atm ilmi-keepalive
>> !
>> interface ATM0.1 point-to-point
>> ip virtual-reassembly in
>> atm route-bridged ip
>> bridge-group 5
>> pvc 0/101
>> encapsulation aal5snap
>>
>> interface FastEthernet8
>> description link to ASA outside - bridging ATM
>> switchport access vlan 5
>>
>> interface Vlan5
>> description bridge group for internet
>> no ip address
>> bridge-group 5
>>
>> interface BVI5
>> ip address dhcp
>> ip flow ingress
>> ip nat outside
>> ip virtual-reassembly in
>>
>> ----------------------------------------------
>>
>>
>> That all seems to work ok, hoever I've tried to do it with another
>> ISP that requires a dialer interface for the ADSL, in line with this
>> doc from cisco which is about bridging ISDN...
>>
>> http://www.cisco.com/en/US/tech/tk801/tk379/technologies_configuration_example09186a008009457f.shtml
>>
>>
>> Now. I guess dhcp isn't going to work on the PC/ASA attached to the
>> fastethernet interface as DHCP ain't the same as PPP IP negotiate.
>>
>> Anyone see a way to make this work? Maybe if the ISP provided a
>> static IP?
>>
>> A bit weird I know, and more for fun than anything else. Any ideas?
>>
>> Paul
>>
>>
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Received on Fri Feb 11 2011 - 20:25:25 ART