For the last week im trying to accomplish a tunnel between a dynamic 3g cellular ip and our outside company ip.
So far seen the only way to make this work is by using l2tpv3 client initiated dynamic tunneling.
so far i need an answer for some for others maybe simple questions. is l2tpv3 the good technique to make a tunnel over a cellular network? because with ipsec gre i need to provide my client and host while my client ip is dynamic in a cellular network.
So far i am trying to understand the technique but missing some key elements.
Using xconnect as a dynamic session setup i am trying to talk to my endpunt of the tunnel but where does the ip address of the endpunt go?
here is what i have worked out so far:
Router#show running-config
Building configuration...
Current configuration : 1832 bytes
!
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
!
no aaa new-model
!
!
ip source-route
!
ip cef
l2tp-class Company.Class.To.Mainsite
authentication
password 7 111A1C0605171F
!
!
no ipv6 cef
!
multilink bundle-name authenticated
chat-script internet "" "ATDT*99*1#" TIMEOUT 30 CONNECT
!
archive
log config
hidekeys
!
!
pseudowire-class Company.PW.To.Mainsite
encapsulation l2tpv3
protocol l2tpv3 Company.Class.To.Mainsite
ip local interface Loopback0
!
interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface FastEthernet4
no ip address
shutdown
duplex auto
speed auto
!
interface Cellular0
no ip address
ip virtual-reassembly
encapsulation ppp
load-interval 60
dialer in-band
dialer pool-member 1
dialer-group 1
async mode interactive
!
interface Vlan1
no ip address
xconnect 100.200.100.200 123 encapsulation l2tpv3 pw-class Company.PW.To.Mainsite
!
interface Dialer1
ip address negotiated
ip virtual-reassembly
encapsulation ppp
dialer pool 1
dialer idle-timeout 0
dialer string internet
dialer persistent
dialer-group 1
ppp authentication chap callin
ppp chap hostname dummy
ppp chap password 0 dummy
ppp ipcp dns request
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Dialer1
no ip http server
no ip http secure-server
!
!
control-plane
!
!
line con 0
no modem enable
line aux 0
line 3
exec-timeout 0 0
password cisco
script dialer internet
login
modem InOut
no exec
transport input all
line vty 0 4
login
!
scheduler max-task-time 5000
end
