About Bob Boklewski

Bob Boklewski · 05-01-2017

Say we have the given scenario, see diagram. The building has given us two routable addresses (66.56.77.24 and 11.54.21.12), one for each of their ISP's for redundancy to the firewall in our suite. So ISP1 routed the 66.56.77.16/28 to the building's...

Bob Boklewski · 03-24-2017

I am load balancing over two ISP's and have an ISA570 firewall. We need a second public IP block as we have used up the existing ones we have with our main isp. Now, it sounds like the ISP can do one of two things. 1. They can trunk the port and...

Bob Boklewski · 03-11-2016

Network service detection keeps showing that WAN1 is down every so often and it is not. I was running 4.2.2.08 and upgraded to the latest 4.2.3.7 and it still has the same issue. It is disconnecting our voip phones and other other connected software...

Bob Boklewski · 01-15-2016

Does Cisco make ethernet modules much like the WIC t1 or WIC ether-switch cards? I haven't seen any of these before and curious is they exist. Would be nice to be able to add more routable LAN interfaces if possible. Thanks!

Bob Boklewski · 10-02-2015

I am trying to see if it is possible to create an ipsec vpn tunnel where one side has a public address and the other device has a NAT'd private address. I have never done this before, but it sounds possible with NAT-T. Please let me know, here is a...

Bob Boklewski · 05-04-2017

Thanks for the help guys.

Bob Boklewski · 05-03-2017

Exactly what I was trying to say. Except I think you meant to say "So if your ISP1 circuit is down, this packet will not reach you" because ISP2 doesn't have a return route unless like you said both ISP's route for that same subnet (66.56.77.24/x). ...

Bob Boklewski · 05-03-2017

So those IP subnets are from the ISP, so they are routable. So, ISP1 has route to top firewall for 66.56.77.x/x and ISP2 has route to top firewall for 11.54.21.x/x Then the top firewall uses those and creates sub interfaces for my suite router to us...

Bob Boklewski · 05-03-2017

Hey Julio, So I put the network diagram in first post if you can take a look. First ISP1 serves 66.56.77.24/xx and ISP2 serves 11.54.21.12/xx. So, I guess I am trying to figure out here why a subnet from ISP1 would be blocked by ISP2 in terms of o...

Bob Boklewski · 05-03-2017

Anybody else want to weigh in?

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Thanks for the help guys.

Exactly what I was trying to

So those IP subnets are from

Hey Julio,

Anybody else want to weigh in