Simple L2TPv3 Dynami

2023-01-31 01:01:53 Simple L2TPv3 Dynami

Simple L2TPv3 Dynamic Tunnels

topo:

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fa1/0 fa2/0 fa1/0 fa0/0
AS1-CE3 ------ AS1-PE3 ------- AS1-C ----- AS1-PE1 -----AS1-CE1
fa1/0 fa2/0 fa1/0 fa0/0

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AS1-CE3 configuration:

hostname AS1-CE3
!
ip subnet-zero
!
!
interface Loopback1
ip address 192.168.11.1 255.255.255.0
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet1/0
description connect to AS1-PE3 fa1/0 via L2TP to AS1-CE1
ip address 192.168.1.1 255.255.255.0
duplex auto
speed auto
!
ip classless
no ip Http server
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
!
end
------------------------------------------------------------------------------

AS1-PE3 configuration:

hostname AS1-PE3
!
boot-start-marker
boot-end-marker
!
!
ip subnet-zero
!
!
ip cef
no ip domain-lookup
mpls label range 300 399
tag-switching tdp router-id Loopback0
pseudowire-class dynamic
encapsulation l2tpv3
ip local interface Loopback101
!
interface Loopback0
ip address 100.1.1.3 255.255.255.255
no ip directed-broadcast
!
interface Loopback101
description lookback for L2TPv3 to Customer1
ip address 100.254.1.1 255.255.255.255
no ip directed-broadcast
!
interface FastEthernet0/0
no ip address
no ip directed-broadcast
shutdown
!
interface FastEthernet1/0
description connect to AS1-CE3 fa1/0 via L2TP to AS1-PE1 by James
no ip address
no ip directed-broadcast
tag-switching ip
no cdp enable
xconnect 100.254.1.2 2 pw-class dynamic
!
interface FastEthernet2/0
description connect to AS1-C fa2/0
ip address 172.16.34.3 255.255.255.0
no ip directed-broadcast
tag-switching ip
!
router ospf 1
log-adjacency-changes
network 100.1.1.3 0.0.0.0 area 0
network 100.254.1.1 0.0.0.0 area 0
network 172.16.0.0 0.0.255.255 area 0
end

------------------------------------------------------------------------------
AS1-C configuration:

hostname AS1-C
!
boot-start-marker
boot-end-marker
!
!
ip subnet-zero
!
!
ip cef
no ip domain-lookup
mpls label range 400 499
tag-switching tdp router-id Loopback0
!
!
!
interface Loopback0
ip address 100.1.1.4 255.255.255.255
no ip directed-broadcast
!
interface FastEthernet0/0
no ip address
no ip directed-broadcast
shutdown
!
interface FastEthernet1/0
description connect to AS1-PE1 fa1/0
ip address 172.16.14.4 255.255.255.0
no ip directed-broadcast
tag-switching ip
!
interface FastEthernet2/0
description connect to AS1-PE3 fa2/0
ip address 172.16.34.4 255.255.255.0
no ip directed-broadcast
tag-switching ip
!
interface FastEthernet3/0
no ip address
no ip directed-broadcast
shutdown
!
router ospf 1
log-adjacency-changes
network 100.1.1.4 0.0.0.0 area 0
network 172.16.0.0 0.0.255.255 area 0
!
ip classless
!
!
!
control-plane
!
line con 0
exec-timeout 0 0
logging synchronous
stopbits 1
line aux 0
stopbits 1
line vty 0 4
!
no cns aaa enable
end

------------------------------------------------------------------------------

AS1-PE1 configuration:

hostname AS1-PE1
!
boot-start-marker
boot-end-marker
!
!
ip subnet-zero
!
!
ip cef
no ip domain-lookup
mpls label range 100 199
tag-switching tdp router-id Loopback0
pseudowire-class dynamic
encapsulation l2tpv3
ip local interface Loopback101
!
!
!
!
interface Loopback0
ip address 100.1.1.1 255.255.255.255
no ip directed-broadcast
!
interface Loopback101
description lookback for L2TPv3 to Customer1
ip address 100.254.1.2 255.255.255.255
no ip directed-broadcast
!
interface FastEthernet0/0
description connet to AS1-CE1 via L2TP to AS1-PE3 by James
no ip address
no ip directed-broadcast
no cdp enable
xconnect 100.254.1.1 2 pw-class dynamic
!
interface FastEthernet1/0
description connect to AS1-C fa1/0
ip address 172.16.14.1 255.255.255.0
no ip directed-broadcast
tag-switching ip
!
interface FastEthernet2/0
no ip address
no ip directed-broadcast
shutdown
!
interface FastEthernet3/0
no ip address
no ip directed-broadcast
shutdown
!
router ospf 1
log-adjacency-changes
network 100.1.1.1 0.0.0.0 area 0
network 100.254.1.2 0.0.0.0 area 0
network 172.16.0.0 0.0.255.255 area 0
!
ip classless
!
!
!
control-plane
!
!
line con 0
exec-timeout 0 0
logging synchronous
stopbits 1
line aux 0
stopbits 1
line vty 0 4
!
no cns aaa enable
end

------------------------------------------------------------------------------
AS1-CE1 configuration:

hostname AS1-CE1
!
!
ip subnet-zero
!
!
interface Loopback0
no ip address
!
interface Loopback1
ip address 192.168.13.1 255.255.255.0
!
interface FastEthernet0/0
description connec to AS1-PE1 fa0/0 to connect AS1-CE3
ip address 192.168.1.3 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet1/0
no ip address
shutdown
duplex auto
speed auto
!
ip classless
ip http server
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
!
end
------------------------------------------------------------------------------
AS1-CE1 ping AS1-CE3

AS1-CE1#ping 192.168.1.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 24/43/92 ms
AS1-CE1#sh ip arp
Protocol Address          Age (min) Hardware Addr   Type   Interface
Internet 192.168.1.1            19   cc07.0fc0.0010 ARPA   FastEthernet0/0
Internet 192.168.1.3             -   cc05.0fc0.0000 ARPA   FastEthernet0/0

AS1-CE3 ping AS1-CE1

AS1-CE3#ping 192.168.1.3

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/39/52 ms

AS1-CE3#sh ip arp
Protocol Address          Age (min) Hardware Addr   Type   Interface
Internet 192.168.1.1             -   cc07.0fc0.0010 ARPA   FastEthernet1/0
Internet 192.168.1.3            20   cc05.0fc0.0000 ARPA   FastEthernet1/0

------------------------------------------------------------------------------

AS1-PE3#show l2tun tunnel all
Tunnel InfORMation Total tunnels 1 sessions 1

Tunnel id 7666 is up, remote id is 40568, 1 active sessions
Tunnel state is established, time since change 00:23:38
Tunnel transport is IP (115)
Remote tunnel name is AS1-PE1
Internet Address 100.254.1.2, port 0
Local tunnel name is AS1-PE3
Internet Address 100.254.1.1, port 0
Tunnel domain is
VPDN group for tunnel is -
L2TP class for tunnel is l2tp_default_class
213 packets sent, 208 received
21636 bytes sent, 21336 received
Control Ns 25, Nr 27
Local RWS 3000 (default), Remote RWS 3000 (max)
Tunnel PMTU checking disabled
Retransmission time 1, max 1 seconds
Unsent queuesize 0, max 0
Resend queuesize 0, max 1
Total resends 0, ZLB ACKs sent 25
Total peer authentication failures 0
Current nosession queue check 0 of 5
Retransmit time distribution: 0 0 0 0 0 0 0 0 0
Sessions disconnected due to lack of resources 0
Control message authentication is disabled

AS1-PE3#show l2tun session all
Session Information Total tunnels 1 sessions 1

Session id 52461 is up, tunnel id 7666
Remote session id is 9649, remote tunnel id 40568
Session Layer 2 circuit, type is Ethernet, name is FastEthernet1/0
Session vcid is 2
Circuit state is UP
    Local circuit state is UP
    Remote circuit state is UP
Call serial number is 274000000
Remote tunnel name is AS1-PE1
Internet address is 100.254.1.2
Local tunnel name is AS1-PE3
Internet address is 100.254.1.1
IP protocol 115
Session is L2TP signalled
Session state is established, time since change 00:23:52
    214 Packets sent, 209 received
    21696 Bytes sent, 21396 received
    Receive packets dropped:
      out-of-order:             0
      total:                    0
    Send packets dropped:
      exceeded session MTU:     0
      total:                    0
DF bit off, ToS reflect disabled, ToS value 0, TTL value 255
No session cookie information available
FS cached header information:
    encap size = 24 bytes
    00000000 00000000 00000000 00000000
    00000000 00000000
Sequencing is off
AS1-PE3#

AS1-PE3#show l2tun tunnel summary
Tunnel Information Total tunnels 1 sessions 1

LocID RemID Remote Name State Remote Address Port Sessions L2TPclass
7666 40568 AS1-PE1 est 100.254.1.2 0 1 l2tp_default_cl
AS1-PE3#

AS1-PE3#show l2tun tunnel state
Tunnel Information Total tunnels 1 sessions 1

LocID RemID Local Name Remote Name State Last-Chg
7666 40568 AS1-PE3 AS1-PE1 est 00:24:39

AS1-PE3#show l2tun tunnel transport
Tunnel Information Total tunnels 1 sessions 1

LocID Type Prot Local Address Port Remote Address Port
7666 IP 115 100.254.1.1 0 100.254.1.2 0
AS1-PE3#

AS1-PE3#show l2tun session brief
Session Information Total tunnels 1 sessions 1

LocID      TunID      Peer-address    State     Username, Intf/
                                      sess/cir Vcid, Circuit
52461      7666       100.254.1.2     est,UP    2, Fa1/0
AS1-PE3#show l2tun session circuit
Session Information Total tunnels 1 sessions 1

LocID      TunID      Peer-address    Type Stat Username, Intf/
                                                Vcid, Circuit
52461      7666       100.254.1.2     ETH UP   2, Fa1/0
AS1-PE3#show l2tun session interworking
Session Information Total tunnels 1 sessions 1

LocID      TunID      Peer-address    Type IWrk Username, Intf/
                                                Vcid, Circuit
52461      7666       100.254.1.2     ETH -    2, Fa1/0
AS1-PE3#show l2tun session l2
AS1-PE3#show l2tun session l2tp
Session Information Total tunnels 1 sessions 1

LocID      RemID      TunID      Username, Intf/                          State
                                 Vcid, Circuit
52461      9649       7666       2, Fa1/0                                 est

AS1-PE3#show l2tun session sequence
Session Information Total tunnels 1 sessions 1

LocID RemID TunID Seq Ns Nr Out-of-order
52461 9649 7666 No 0 0 0
AS1-PE3#show l2tun session state
Session Information Total tunnels 1 sessions 1

AS1-PE1#show l2tun tunnel all
Tunnel Information Total tunnels 1 sessions 1

Tunnel id 40568 is up, remote id is 7666, 1 active sessions
Tunnel state is established, time since change 00:25:12
Tunnel transport is IP (115)
Remote tunnel name is AS1-PE3
Internet Address 100.254.1.1, port 0
Local tunnel name is AS1-PE1
Internet Address 100.254.1.2, port 0
Tunnel domain is
VPDN group for tunnel is -
L2TP class for tunnel is l2tp_default_class
218 packets sent, 223 received
22196 bytes sent, 22496 received
Control Ns 29, Nr 27
Local RWS 3000 (default), Remote RWS 3000 (max)
Tunnel PMTU checking disabled
Retransmission time 1, max 1 seconds
Unsent queuesize 0, max 0
Resend queuesize 0, max 2
Total resends 1, ZLB ACKs sent 25
Total peer authentication failures 0
Current nosession queue check 0 of 5
Retransmit time distribution: 0 0 1 0 0 0 0 0 0
Sessions disconnected due to lack of resources 0
Control message authentication is disabled
AS1-PE1#show l2tun session all
Session Information Total tunnels 1 sessions 1

Session id 9649 is up, tunnel id 40568
Remote session id is 52461, remote tunnel id 7666
Session Layer 2 circuit, type is Ethernet, name is FastEthernet0/0
Session vcid is 2
Circuit state is UP
    Local circuit state is UP
    Remote circuit state is UP
Call serial number is 274000000
Remote tunnel name is AS1-PE3
Internet address is 100.254.1.1
Local tunnel name is AS1-PE1
Internet address is 100.254.1.2
IP protocol 115
Session is L2TP signalled
Session state is established, time since change 00:25:20
    219 Packets sent, 224 received
    22256 Bytes sent, 22556 received
    Receive packets dropped:
      out-of-order:             0
      total:                    0
    Send packets dropped:
      exceeded session MTU:     0
      total:                    0
DF bit off, ToS reflect disabled, ToS value 0, TTL value 255
No session cookie information available
FS cached header information:
    encap size = 24 bytes
    00000000 00000000 00000000 00000000
    00000000 00000000
Sequencing is off

AS1-PE1#show l2tun tunnel summary
Tunnel Information Total tunnels 1 sessions 1

LocID RemID Remote Name   State Remote Address Port Sessions L2TPclass
40568 7666 AS1-PE3       est    100.254.1.1     0     1        l2tp_default_cl
AS1-PE1#show l2tun tunnel st
AS1-PE1#show l2tun tunnel state
Tunnel Information Total tunnels 1 sessions 1

LocID RemID Local Name    Remote Name   State Last-Chg
40568 7666 AS1-PE1       AS1-PE3       est    00:25:45
AS1-PE1#show l2tun tunnel tr
AS1-PE1#show l2tun tunnel transport
Tunnel Information Total tunnels 1 sessions 1

LocID Type Prot Local Address Port Remote Address Port
40568 IP 115 100.254.1.2 0 100.254.1.1 0

AS1-PE1#show l2tun session brief
Session Information Total tunnels 1 sessions 1

LocID      TunID      Peer-address    State     Username, Intf/
                                      sess/cir Vcid, Circuit
9649       40568      100.254.1.1     est,UP    2, Fa0/0
AS1-PE1#show l2tun session circuit
Session Information Total tunnels 1 sessions 1

LocID      TunID      Peer-address    Type Stat Username, Intf/
                                                Vcid, Circuit
9649       40568      100.254.1.1     ETH UP   2, Fa0/0
AS1-PE1#show l2tun session interworking
Session Information Total tunnels 1 sessions 1

LocID      TunID      Peer-address    Type IWrk Username, Intf/
                                                Vcid, Circuit
9649       40568      100.254.1.1     ETH -    2, Fa0/0
AS1-PE1#show l2tun session l2tp
Session Information Total tunnels 1 sessions 1

LocID      RemID      TunID      Username, Intf/                          State
                                 Vcid, Circuit
9649       52461      40568      2, Fa0/0                                 est
AS1-PE1#show l2tun session packets
Session Information Total tunnels 1 sessions 1

LocID RemID TunID Pkts-In Pkts-Out Bytes-In Bytes-Out
9649 52461 40568 242 237 24416 24116
AS1-PE1#show l2tun session sequence
Session Information Total tunnels 1 sessions 1

LocID      RemID      TunID      Seq Ns         Nr         Out-of-order
9649       52461      40568      No 0          0          0
AS1-PE1#show l2tun session state
Session Information Total tunnels 1 sessions 1

LocID      RemID      TunID      Username, Intf/                          State
                                 Vcid, Circuit
9649       52461      40568      2, Fa0/0                                 est

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