CISCO VPN CONCENTRATOR, USE BEHIND A FIREWALL?

2001-10-16 Thread Ivan Lopez, TRI
We recently bought a Cisco VPN Concentrator 3015. We've been told that since it does not have firewall capabilityes, it is Not safe to have it's outside interface on the Internet Side. Is that true? Do we need to put a firewall in front of it? In that case, wich ports need to be open? This

Re: CISCO VPN CONCENTRATOR, USE BEHIND A FIREWALL?

2001-10-16 Thread Brian Ford
the firewall, so you can enforce policy on anything that comes through the concentrator. Liberty for All, Brian At 10:11 AM 10/16/2001 -0700, Ivan Lopez, TRI wrote: Message: 11 From: Ivan Lopez, TRI [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: CISCO VPN CONCENTRATOR, USE BEHIND A FIREWALL? Date: Tue

Re: CISCO VPN CONCENTRATOR, USE BEHIND A FIREWALL?

2001-10-16 Thread bob bobing
: CISCO VPN CONCENTRATOR, USE BEHIND A FIREWALL? Date: Tue, 16 Oct 2001 11:04:46 -0400 We recently bought a Cisco VPN Concentrator 3015. We've been told that since it does not have firewall capabilityes, it is Not safe to have it's outside interface on the Internet Side. Is that true? Do we

Re: CISCO VPN CONCENTRATOR, USE BEHIND A FIREWALL?

2001-10-16 Thread Brian Ford
: CISCO VPN CONCENTRATOR, USE BEHIND A FIREWALL? Date: Tue, 16 Oct 2001 11:04:46 -0400 We recently bought a Cisco VPN Concentrator 3015. We've been told that since it does not have firewall capabilityes, it is Not safe to have it's outside interface on the Internet Side. Is that true

Re: CISCO VPN CONCENTRATOR, USE BEHIND A FIREWALL?

2001-10-16 Thread bob bobing
You could do this but if you did you would have to configure the firewall outside interface to pass VPN traffic. yes, and no. yes i am passing vpn traffic, but its not bound for the outside ip of the firewall, its bound for the static NAT rule, which xlats the external to the outside ip of

RE: CISCO VPN CONCENTRATOR, USE BEHIND A FIREWALL?

2001-10-16 Thread Ben Nagy
G'day, I don't like the solution that loops the VPN traffic through the firewall twice. I can't see any real security gain, and there is a big complexity loss. If you were to use NAT, as bob suggested, then it's even worse, because you have all the VPN / NAT issues. Yes, the Cisco concentrators

RE: CISCO VPN CONCENTRATOR, USE BEHIND A FIREWALL?

2001-10-16 Thread bob bobing
Well i like the fact that you still only have one access point, the firewall. You don't have to worry about the upstream router having a correct access-list. (deny anything, but ipsec traffic to and from the vpn). I can see where this goes totaly against K.I.S.S. but i still really like it.