[c-nsp] Bundling/using multiple PPPoE sessions

[Michael Markstaller]

Now, replying myself for the archives in case someone has the same problem..
The following is true at least for the 1712 and 17xx with WIC-4ESW.
I was still stuck with only one PPPoE-session, the reason is the same MAC being used for PPPoE sessions.

The MAC on VlanX cannot be changed, it's always the one of the builtin Fast0, but on Fast0 itself the mac can be changed which results in havin the new/changed MAC on Fast0 and the original MAc of Fast0 on every Vlan.
Now using one WIC-4ESW port & a Vlan for one line (pppoe-client dial-pool 1) and Fast0 for the second (pppoe-client dial pool 2) line gives 2 PPPoE session & working bundling again.

Michael 


> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of 
> Michael Markstaller
> Sent: Wednesday, June 01, 2005 12:15 AM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] Bundling/using multiple PPPoE sessions
> 
> Hi,
> 
> I've one 1760 running 12.3(7)T7 as CPE on two ADSL lines, CEF 
> per packet sharing, which worked very fine for months with 
> the config below, but since approx. 3 weeks the connection 
> looses >50% pkts when both PPPoE-sessions are up. 
> Each line seperately still works fine and now I tried to put 
> another 1712 on two (different) DSL-lines and I haven't even 
> managed to create 2 concurrent PPPoE sessions at all! Not 
> with 12.3(7)T10, not with 12.4(1), not with 12.4(1a)..
> 
> My guess is, it has something to do with the duplicate 
> mac-addresses on client side, probably the carrier changed 
> some behavior in the DSLAM but as I didn't got it working at 
> all with the second one I wonder wether this might also be 
> some Cisco "feature" and I just had luck with the first one.
> The next thing tomorrow I'll try to plug one of the DSL-lines 
> on Fast0 to get have a different client mac-addr..
> 
> But just to make sure: Anybody running multiple PPPoE 
> sessions with 17xx who can confirm this working stable at all ?
> 
> 
> The config (I also tried other combinations but currently I'm 
> stuck with 1 PPPoE session at any time..)
> --- cut ---
> vpdn enable
> !
> vpdn-group 10
>  request-dialin
>   protocol pppoe
> !
> interface FastEthernet1/1
>  description WAN-Interface to T-DSL #1
>  bandwidth 1024
>  no ip address
>  load-interval 30
>  no cdp enable
> !
> interface FastEthernet1/2
>  description WAN-Interface to T-DSL #2
>  bandwidth 1024
>  no ip address
>  load-interval 30
>  no cdp enable
> !
> interface Vlan1
>  description Vlan/WAN-Interface to T-DSL
>  bandwidth 2048
>  no ip address
>  no ip proxy-arp
>  load-interval 30
>  pppoe enable
>  pppoe-client dial-pool-number 12
>  pppoe-client dial-pool-number 11
> !
> interface Dialer11
>  ip address negotiated
>  ip access-group 160 in
>  ip mtu 1456
>  ip load-sharing per-packet
>  ip nat outside
>  ip inspect INSPECT-RULE1 out
>  encapsulation ppp
>  ip route-cache flow
>  dialer pool 11
>  dialer vpdn
>  dialer-group 11
>  no peer default ip address
>  no cdp enable
>  ppp authentication pap callin
>  ppp multilink
>  ppp timeout authentication 180
>  crypto map VPN
> !
> interface Dialer12
>  dialer pool 12
>  dialer vpdn
>  dialer-group 12
>  ... (the same as Di11)
> --- cut ---
> 
> BTW, I get DSL-subscribers delivered as PPPoE on a LNS via 
> L2TP, so I've no access to the DSLAM but would see other 
> problems there.. nothing changed on the LNS..
> 
> 
> Michael
> 
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
> 
>