02-05-2010 01:15 AM - edited 03-04-2019 07:24 AM
Hello,
I have just received my new Cisco 871W router and I need to configure it to be to dial to cables modem using L2TP or PPTP in order to make a connection to the internet.
I can see that in CP Express there is only PPPoE and there is no L2TP or PPTP why?
Anyway, I have received the following script for L2TP but after set it up using CP Professional 1.3 still there is no connection to the internet.
Will be much appreciated for any help,
Asaf
pseudowire-class ISP
encapsulation l2tpv2
interface FastEthernet4
description WAN interface to ISP
ip address dhcp
ip virtual-reassembly
load-interval 30
duplex auto
speed auto
interface Virtual-PPP1
description L2TP dialer to ISP
ip address negotiated
ip flow ingress
ip flow egress
ip nat outside
ip virtual-reassembly
ppp pap sent-username MyUser password MyPass
ppp ipcp dns request accept
pseudowire cablelns.012.net.il 2 pw-class ISP
ip route 0.0.0.0 0.0.0.0 Virtual-PPP1
ip route cablelns.012.net.il 255.255.255.255 FastEthernet4
END
02-05-2010 01:42 AM
Hello Asaf,
in a similar thread the solution was to use the DHCP keyword in the static route towards L2TP terminator address
try to change from:
ip route cablelns.012.net.il 255.255.255.255 FastEthernet4
to
ip route cablelns.012.net.il 255.255.255.255 Fast4 dhcp
this option allows to learn next-hop ip address dynamically by DHCP server
see
http://www.cisco.com/en/US/docs/ios/iproute/command/reference/irp_pi1.html#wp1031306
you can check what happens using:
term mon
debug ppp neg
debug ppp auth
Hope to help
Giuseppe
02-05-2010 02:09 AM
02-05-2010 02:26 AM
Hello Asaf,
the debug looks like good: PPP negotiation and PPP authentication phases are passed state OPEN = OK and later IPCP (negotiation of IP parameters over the PPP session) is performed.
What exactly are the problem you face?
I look again at initial configuration you may be missing the NAT part.
Edit:
I see virtual-ppp has ip nat outside on it.
get a telnet or console session in your router and try to ping some public ip address on the internet from the router.
if the router can go to the internet, but devices on internal LAN cannot the issue is on the NAT part.
Hope to help
Giuseppe
02-05-2010 05:03 AM
02-05-2010 11:42 AM
Hello Asaf,
connect to the router using the console cable to go on troubleshooting or using a telnet to internal LAN
check with
sh users
if the PPP session stays up, it does it should be listed in the output of this show.
Hope to help
Giuseppe
02-05-2010 11:43 PM
Hi Giuseppe,
For several years I am using CheckPoint products and it is so easy to maintain them.
For a new server my ISP recommended to me to try Cisco as they are better but after I messed around with the 871W for two days I have found it very hard to maintain also I could not connect it to the internet using L2TP and I am going to return it to the vendor I purchased it form.
Also in CheckPoint products there is a dialer for PPPoE (ADSL), and PPTP (Cables) so why Cisco 871 does not have this simple PPTP or L2TP option out of the box an using only PPPoE option?
In CheckPoint products all are done from a very intuitive GUI Interface not need to mess around with CLI commands and scripts and all are done thru the appliance itself with no need for Java on the PC and no need for three different administration software's like the 871 needs, one is CP Express, two is CP Professional and three is the one for the Wireless.
Many thanks for trying to help me with my issue.
Kind Regards,
Asaf
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