Firewall Wizards mailing list archives
RE: Switch Redundancy for my firewall cluster
From: "Paul Melson" <psmelson () comcast net>
Date: Mon, 2 May 2005 17:37:05 -0400
To answer your specific questions... A1. See below. | sw1 | <-backplane-> | sw2 | ^ ^ | | v v | fw1 | <---sync----> | fw2 | ^ ^ | | v v | sw4 | <-backplane-> | sw4 | Or if you don't want to backplane the two pairs of switches, you can cross them over with 802.1q trunk ports. Assign a VLAN for every subnet the firewall has an interface on, and trunk that VLAN to the other switch in the pair (in the diagram above, sw1 and sw2 would trunk VLANs to each other, same as sw3 and sw4). A2. Yes. A3. 802.1q VLAN tagging and trunking, that's how. (see above) A4. No. Your firewall cluster can (if you buy the right licenses) do the load balancing for you, if you require it. Otherwise, you'll end up with a fail-over configuration. Doing L4+ load-balancing with the switches will not get you load balancing through the firewall, only on either side of it. The firewall would still be a choke point since the same cluster member would be handling all traffic sent to the cluster addresses. PaulM -----Original Message----- From: firewall-wizards-admin () honor icsalabs com [mailto:firewall-wizards-admin () honor icsalabs com] On Behalf Of Nick Brandson Sent: Sunday, May 01, 2005 8:03 PM To: firewall-wizards Subject: [fw-wiz] Switch Redundancy for my firewall cluster Dear (Cisco) guru, Want to elimate every single point of failure for my network topology. Planning to have firewall cluster and switch redundancy Environment: * Check Point - Unlimited x2 (SecurePlatform) * ClusterXL * Cisco 29XX switch x 4 (two upstream & two downstream) Questions, 1. How the network topology looks like? 2. Do we need a delegate/physical connection from each firewall member/node to two upstream switches and two downstream switches? 3. If so, how is it possible? Because Check Point is running as router mode and it means each physical ports will carry different segments and we have to set up two different segments for each ports connecting to two upstream switches and so do for the downstream switches in order to do the "Cross" effect. 4. Do we need L4-7 Switch in order to do so? as per the network diagram from Cisco http://www.cisco.com/warp/public/117/fw_load_balancing1.gif Any ideas will be appreciated. _______________________________________________ firewall-wizards mailing list firewall-wizards () honor icsalabs com http://honor.icsalabs.com/mailman/listinfo/firewall-wizards
Current thread:
- Switch Redundancy for my firewall cluster Nick Brandson (May 02)
- Re: Switch Redundancy for my firewall cluster Kevin (May 02)
- RE: Switch Redundancy for my firewall cluster Paul Melson (May 02)