dear Sir/Madam,
I am trying to establish a l2tp VPn connection between MT RB (v2.9.26) [l2tp server]
and a Cisco 2821 [l2tp client]. The server config seems to be very
easy (not a lot of parameters) ,now ,i have a l2tp username ,password ,remote IP of l2tp server
how to configure or write command script in cisco 2821
Is there anybody who is able to provide some simple cisco config
lines?Thanx in advance.
you should try v4.6 instead, it has many fixes and improvements. licenses users upgrade for free
before the day.establish a l2tp VPn connection between MikroTik route and MikroTik route .
but the one of MikroTik route ( L2tp sever )is not of me ,and i must acess it with cisco 2821 instead of MikroTik route now,
i have a l2tp username: test ,password :test ,remote IP: 10.10.10.2 of l2tp server of MikroTik route
how to configure or write command script in cisco 2821 access it ? help me ,please!
Hi, I am currently trying to do the same thing (MK as l2tp server and cisco router as l2tp client).
So far I managed to try this successfully only between two cisco routers (by following cisco docs on l2tp). I also have one functional L2Tp setup between two microtics which is working and one of these will be server for the cisco machine.
However, I then pointed the cisco setup of l2tp client to l2tp server on mikrotic, ppp did not make it through LCP stage.
My current config is this for microtic (hostname Arachnid):
/ppp profile print;
Flags: * - default
3 name="l2tp_cisco" use-compression=default use-vj-compression=default use-encryption=default only-one=default change-tcp-mss=default
/ppp secret print;
Flags: X - disabled
# NAME SERVICE CALLER-ID PASSWORD PROFILE
3 Cisco any cisco l2tp_cisco
/interface l2tp-server print;
Flags: X - disabled, D - dynamic, R - running
# NAME USER MTU CLIENT-ADDRESS UPTIME ENCODING
1 l2tp-in-cisco Cisco
/interface l2tp-server server print;
enabled: yes
max-mtu: 1460
max-mru: 1460
mrru: disabled
authentication: mschap2
default-profile: l2tp_cisco
On cisco side, I have this (192.168.10.130 is an IP address of mikrotic l2tp server)
l2tp-class l2tpclass1
authentication
!
hostname Cisco
username Arachnid password 0 cisco
!
pseudowire-class pwclass1
encapsulation l2tpv2
!
interface Loopback1
no ip address
!
interface FastEthernet0/0
ip address dhcp
duplex auto
speed auto
!
interface Virtual-PPP1
ip address negotiated
no shutdown
no cdp enable
ppp authentication ms-chap-v2
pseudowire 192.168.10.130 10 pw-class pwclass1
!
This configuration is not working, even the first phase of PPP (LCP) will not negotiate on configuration parameters, in wireshark, i see something like this:
– output ommited—
LCP Configuration Request
LCP Configuration Reject
LCP Configuration Request
LCP Configuration Reject
LCP Configuration Request
LCP Configuration Reject
LCP Configuration Request
LCP Configuration Reject
LCP Configuration Request
LCP Configuration Reject
LCP Termination Request
LCP Termination Ack
– output ommited—
I anyone can help or has a functional L2TP setup with cisco beeing client to mikrotic, I would like to see the configs.
PS: Mikrotik version 4.7. 
zerxen, did you succeed?
Been at this for months now through virtually every single ROS version from the v5 RC releases…
LCP never makes it through authentication. PAP/CHAP doesn’t matter - it simply REFUSES to authenticate.
20:14:16 l2tp,ppp,debug <x.x.255.225>: LCP timer
20:14:16 l2tp,ppp,debug,packet <198.19.255.225>: sent LCP ConfReq id=0x5
20:14:16 l2tp,ppp,debug,packet <mru 1450>
20:14:16 l2tp,ppp,debug,packet <magic 0x6d8046e3>
20:14:16 l2tp,ppp,debug,packet
20:14:21 l2tp,ppp,debug <x.x.255.225>: LCP timer
20:14:21 l2tp,ppp,debug,packet <198.19.255.225>: sent LCP ConfReq id=0x6
20:14:21 l2tp,ppp,debug,packet <mru 1450>
20:14:21 l2tp,ppp,debug,packet <magic 0x6d8046e3>
20:14:21 l2tp,ppp,debug,packet
20:14:29 l2tp,ppp,debug <x.x.255.225>: LCP timer
20:14:29 l2tp,ppp,debug,packet <198.19.255.225>: sent LCP ConfReq id=0x7
20:14:29 l2tp,ppp,debug,packet <mru 1450>
20:14:29 l2tp,ppp,debug,packet <magic 0x6d8046e3>
20:14:29 l2tp,ppp,debug,packet
20:14:30 l2tp,ppp,debug <x.x.255.225>: LCP timer
20:14:30 l2tp,ppp,debug,packet <198.19.255.225>: sent LCP ConfReq id=0x9
20:14:30 l2tp,ppp,debug,packet <mru 1450>
20:14:30 l2tp,ppp,debug,packet <magic 0x3aa14387>
20:14:30 l2tp,ppp,debug,packet
20:14:40 l2tp,ppp,debug <x.x.255.225>: LCP timer
20:14:40 l2tp,ppp,debug,packet <198.19.255.225>: sent LCP ConfReq id=0x8
20:14:40 l2tp,ppp,debug,packet <mru 1450>
20:14:40 l2tp,ppp,debug,packet <magic 0x6d8046e3>
20:14:40 l2tp,ppp,debug,packet
I’m pretty much at the point where I’m giving up on MT as a NAS device. Even PPPoE is better handled through something like a cheap 7200 VXR