[c-nsp] PPP Multilink with L2TP interfaces

[Nic Tjirkalli]

howdy ho,

i am trying to get a CPE to
1) fire up a PPPoE session over an Ethernet interface to bring up a Dialer1
   interface
2) over this interface, fire up 2 L2TP sessions (Virtual-PPP1 and
    Virtual-PPP2 and put these in a multilink bundel)
    The L2TP tunnels are terminating on 196.30.121.42

Now all works well except for the Multilink PPP part. the 2 L2TP sessions
come up individual but there is no sign of any attempt to multilink
(nothing seen in any debug ppp multilink)

I have included my current config

if anybody can tell me if what i am trying to do is even possible and how
to fix my config i would be very happy and thankful

thanx in advance


=================== CPE configuration =============================
Current configuration : 3481 bytes
!
version 12.4
no service timestamps debug uptime
no service timestamps log uptime
service password-encryption
!
hostname l2tp-multilink
!
boot-start-marker
boot-end-marker
!
logging buffered 4096 debugging
enable secret 5 $1$8ZOc$o9WmyJlHqGd1R8E/iYAR0/
!
no aaa new-model
ip cef
!
!
!
!
no ip domain lookup
ip auth-proxy max-nodata-conns 3
ip admission max-nodata-conns 3
vpdn enable
!
l2tp-class l2tpclass1
  authentication
  password 7 15115E0B2C7221027123
!
!
multilink virtual-template 1
!
!
no crypto engine onboard 0
!
!
pseudowire-class pwclass1
  encapsulation l2tpv2
  protocol l2tpv2 l2tpclass1
  ip local interface Dialer1
!
pseudowire-class pwclass2
  encapsulation l2tpv2
  protocol l2tpv2 l2tpclass1
  ip local interface Dialer1
!
! 
!
!
!
interface Loopback0
  ip address 172.16.1.1 255.255.255.255
!
interface Null0
  no ip unreachables
!
interface FastEthernet0/0
  no ip address
  speed 100
  full-duplex
  pppoe enable group global
  pppoe-client dial-pool-number 1
!
interface FastEthernet0/1
  no ip address
  duplex auto
  speed auto
!
interface Virtual-PPP1
  ip address negotiated
  ip mtu 1452
  ip virtual-reassembly
  no logging event link-status
  no peer neighbor-route
  no cdp enable
  ppp chap hostname testuser1
  ppp chap password 7 XXXXXXXX
  ppp pap sent-username testuser1 password 7 XXXXXXXX
  ppp multilink
  pseudowire 196.30.121.42 10 pw-class pwclass1
!
interface Virtual-Template1
  ip unnumbered Loopback0
  ppp multilink
!
interface Virtual-PPP2
  ip address negotiated
  ip mtu 1452
  ip virtual-reassembly
  no logging event link-status
  no peer neighbor-route
  no cdp enable
  ppp chap hostname testuser2
  ppp chap password 7 XXXXXXX
  ppp pap sent-username testuser2 password 7 XXXXXXX
  ppp multilink
  pseudowire 196.30.121.42 100 pw-class pwclass2
!
interface Dialer1
  mtu 1492
  ip address negotiated
  ip virtual-reassembly
  encapsulation ppp
  ip tcp adjust-mss 1452
  dialer pool 1
  dialer-group 1
  ppp chap hostname testuser1
  ppp chap password 7 XXXXXXXX
  ppp pap sent-username testuser1 password 7 XXXXXXXX
!
no ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Virtual-PPP1
ip route 196.30.121.42 255.255.255.255 Dialer1
!
!
ip http server
no ip http secure-server
!
ip access-list extended check_packets_in
  permit ahp any any
  permit esp any any
  permit udp any eq isakmp any eq isakmp
  permit ip any any
!
access-list 1 permit any
access-list 2 deny   any
access-list 3 permit 10.0.0.2
access-list 3 permit 206.64.200.15
access-list 3 permit 196.22.64.194
access-list 3 permit 10.222.0.1
access-list 3 permit 10.222.0.2
access-list 3 permit 10.244.0.2
no cdp run
!
!
!
!
control-plane
!
!
banner motd ^CC
##################################################################
#    You Should Not Be Here - Logg Off Imediately Thankyou       #
#                                                                #
#                                                                #
##################################################################
^C
!
line con 0
  exec-timeout 0 0
line aux 0
  exec-timeout 0 0
line vty 0 4
  access-class 3 in
  exec-timeout 0 0
  password 7 1315181718
  login
line vty 5 8
  exec-timeout 0 0
  no login
line vty 9 15
  no login
!
scheduler allocate 20000 1000
end

l2tp-multilink#



---------------------------------------------------------------------
I like you. You remind me of when I was young and stupid.

Nic Tjirkalli
Verizon Business South Africa
Network Strategy Team

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