topic Re: What are the differences in NAT configuration between standard Quantum and Quantum Spark? in Spark Firewall (SMB)

What are the differences in NAT configuration between standard Quantum and Quantum Spark?

TSOL — Thu, 28 Nov 2024 09:49:21 GMT

Hello Team,

Currently, I have connected Quantum Spark to Smart-1 Cloud and configured the policies, but even with the same policies as Quantum, PCs connected under Spark cannot access the internet.

Are there any configuration differences between Quantum and Spark that I should be aware of?
The Spark device itself can download updates over the internet without any issues, so connectivity seems fine.
The version is the latest R81.10.

Thank you in advance for your assistance.

Re: What are the differences in NAT configuration between standard Quantum and Quantum Spark?

Chris_Atkinson — Thu, 28 Nov 2024 12:42:05 GMT

In general no, not when centrally managed.

R81.10.10 or R81.10.15 and which build also is your NAT dependent on proxy ARP?

Re: What are the differences in NAT configuration between standard Quantum and Quantum Spark?

the_rock — Thu, 28 Nov 2024 15:27:56 GMT

I dont believe there would be any differences. If I were you, I would do some basic testing and see where the connection fails. For example, is it even leaving the firewall, what do logs show, any drops in the logs from S1C portal?

Best,

Andy

Re: What are the differences in NAT configuration between standard Quantum and Quantum Spark?

G_W_Albrecht — Thu, 28 Nov 2024 16:15:27 GMT

Can we move this into the Spark corner, @PhoneBoy ?

Re: What are the differences in NAT configuration between standard Quantum and Quantum Spark?

TSOL — Fri, 29 Nov 2024 05:50:31 GMT

Thank you

We are using R81.10.15. Are there any differences in the settings for R81.10.15? Also, we are not using Proxy ARP.

Re: What are the differences in NAT configuration between standard Quantum and Quantum Spark?

TSOL — Fri, 29 Nov 2024 05:53:02 GMT

Thank you for the advise.
I couldn't find any logs indicating drops. It seems that NAT is not functioning properly. I would like to know the command to check if NAT is working as expected.

Re: What are the differences in NAT configuration between standard Quantum and Quantum Spark?

G_W_Albrecht — Fri, 29 Nov 2024 08:33:27 GMT

There must be something wrong somewhere (in the rule base ?) as this usually works as expected. I would suggest to open SR' with CP TAC as i think this can be resolved during a short RAS. Without a look into your Dashboard we can not help you as this is no common error at all!

Re: What are the differences in NAT configuration between standard Quantum and Quantum Spark?

the_rock — Fri, 29 Nov 2024 11:48:41 GMT

I agree with @G_W_Albrecht 100%. If you call TAC, they can do remote and probably fix it quick. See, for us here, unless we see exactly whats happening, its very difficult to even make a logical assumption. Personally, if I were you, I would do an actual capture on the gateway (tcpdump and fw monitor) and draw my conclusions based on that.

Best,

Andy

Re: What are the differences in NAT configuration between standard Quantum and Quantum Spark?

AmirArama — Sun, 01 Dec 2024 16:25:37 GMT

general guidelines:

first aid to see what's up with the packet use 'fw monitor'

for example let's filter some dst (9.9.9.9)

fw monitor -F "0,0,9.9.9.9,0,0"

run ping to 9.9.9.9 from the PC behind the Spark.

you should see the same packet four times, with i, I, o, O.
if you see only i, it probably drops. (run fw ctl zdebug + drop to see the reason)
if don't see o, you don't have route (probably not the case)

on O, you should see the source is changing to the NAT IP (rather then original PC IP).

if you still see the original IP, you don't have NAT.

how exactly did you configure your NAT ? (Automatic NAT/manual NAT) please provide screenshot or details.

Thanks