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Cisco 851 et L2TP Passthrough

Hi,

We've got a Cisco 851 router and we are hosting Web services (HTTP et HTTPS), email (SMTP) et VPN (PPTP, L2TP).

As we don't know Cisco CLI, I used the SDM to open ports.

I opened the Web, Mail and PPTP and they are working. But L2TP is not, user connexion are not working, the L2TP server is not receiving any request. Can you check my configuration.

IP Cisco : 192.168.0.254

Web, Mail, VPN : 192.168.0.253

Open Ports:

ip nat inside source list 1 interface Dialer0 overload

ip nat inside source static udp 192.168.0.253 4500 interface Dialer0 4500

ip nat inside source static udp 192.168.0.253 500 interface Dialer0 500

ip nat inside source static udp 192.168.0.253 1701 interface Dialer0 1701

ip nat inside source static tcp 192.168.0.253 1723 interface Dialer0 1723

ip nat inside source static tcp 192.168.0.253 25 interface Dialer0 25

ip nat inside source static tcp 192.168.0.253 443 interface Dialer0 443

ip nat inside source static tcp 192.168.0.253 80 interface Dialer0 80

Firewall ACL

access-list 101 remark HTTP

access-list 101 permit tcp any any eq www

access-list 101 remark HTTPS

access-list 101 permit tcp any any eq 443

access-list 101 remark SMTP

access-list 101 permit tcp any any eq smtp

access-list 101 remark PPTP

access-list 101 permit tcp any any eq 1723

access-list 101 remark L2TP

access-list 101 permit udp any any eq 1701

access-list 101 remark IKE

access-list 101 permit udp any any eq isakmp

access-list 101 remark IPSec NAT-T

access-list 101 permit udp any any eq non500-isakmp

access-list 101 remark GRE

access-list 101 permit gre any any

Full Configuration File :

http://kadans.free.fr/ftp/cisco851.txt

Thanks

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Re: Cisco 851 et L2TP Passthrough

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