DBOTTONADN
Technical User
Hi,
I would like to retrieve opinions on the ability to install a VPN over other VPN. That means a tunnel through other established tunnel(s).
I mean that many operators offer interconnection through their own optic fibre networks and ADSL networks through the country and they call that VPNs.
Well imagine you have four offices and need to interconnect 3 of them to the main one. This network matches those needs, but imagine now that you need additionnally to protect some data (the data that is exchanged between these offices) and separate this data from traffic with destination to the internet. One solution would then be to establish VPNs with some equipments (like Juniper Netscreen for instance) to encript and ensure private data and let internet traffic be routed out of the VPNs to an outgoing router for internet access.
Do you think this configuration would valid ? I understand the backbone interconection that the operator provides as "VPN" is not really a VPN but just a transport network, although is seems to be somehow private for this customer... So the problematic could be to establish a VPN over a VPN.
I understand there should be no real problem, but I am not sure because of L2TP behaviour, or 3DES, etc.
Please post your opinions ans explanations.
Thanks
Regards
Dan
I would like to retrieve opinions on the ability to install a VPN over other VPN. That means a tunnel through other established tunnel(s).
I mean that many operators offer interconnection through their own optic fibre networks and ADSL networks through the country and they call that VPNs.
Well imagine you have four offices and need to interconnect 3 of them to the main one. This network matches those needs, but imagine now that you need additionnally to protect some data (the data that is exchanged between these offices) and separate this data from traffic with destination to the internet. One solution would then be to establish VPNs with some equipments (like Juniper Netscreen for instance) to encript and ensure private data and let internet traffic be routed out of the VPNs to an outgoing router for internet access.
Do you think this configuration would valid ? I understand the backbone interconection that the operator provides as "VPN" is not really a VPN but just a transport network, although is seems to be somehow private for this customer... So the problematic could be to establish a VPN over a VPN.
I understand there should be no real problem, but I am not sure because of L2TP behaviour, or 3DES, etc.
Please post your opinions ans explanations.
Thanks
Regards
Dan