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mhurst
Explorer

Can't use groups with exclusion in NAT rules in R80?

In R80 can you not use groups with exclusion in NAT rules?

In a ruleset imported from R77 - where it has verified OK for years - am getting multiple verification errors:

Invalid Object 'XXXXX' in Original Source of Address Translation Rule 195. The valid objects are: host, gateway, network, address range and router.

The original source in that rule is a group with exclusion. Is that no longer supported?

12 Replies
mhurst
Explorer

The valid objects are: host, gateway, network, address range and router.

Groups are not listed as valid objects at all in that verify message.

PhoneBoy
Admin
Admin

This was never formally supported.
The fact that it worked at all in prior releases is considered a bug that has since been fixed.
https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solut...
mhurst
Explorer

Thanks for the prompt response.

mhurst
Explorer

It is unfortunate this was categorised as a bug as it is useful functionality.

Applying a NAT rule to a set of things except for a subset of those things is required sometimes.

PhoneBoy
Admin
Admin

Understand that it is useful, but you can achieve a similar result with additional "no NAT" rules.
Lhouse
Explorer

I try this with our VPN addresses to and internal segment of our LAN and after I push policy I can no longer ping the network the destination network...does anyone have thoughts on that.  

amoruck
Participant

But if you use SmartMove tool (sk97246) for Juniper to Check Point conversion, it will happily create NAT rules using groups with exclusion; I think if you decided it's a bug in one place you should not use it in another as a feature (otherwise this tool is very handy, btw, thanks). 

PhoneBoy
Admin
Admin

That might be a bug in the SmartMove tool.
Paging @yael_haker 
I'm actually curious now if rules with negated objects in NAT rules works in R81, since we made major changes to the NAT policy in this version.

Meital_Natanson
Employee
Employee

No. In R81, NAT supports domain objects, security zones, updatable objects, access roles, data centers and hit count.

But not negate objects / group with exclusions.

As you wrote before, it can be achieved using no NAT rule.

Timothy_Hall
Legend Legend
Legend

Hi @Meital_Natanson is there a way to test NAT rule matching from the CLI gateway similar to fw up_execute for the Firewall/Network policy layer?

Attend my online "Be your Own TAC: Part Deux" CheckMates event
March 27th with sessions for both the EMEA and Americas time zones
Meital_Natanson
Employee
Employee

@Timothy_Hall  - no such option.

Ofir_Shikolski
Employee Alumnus
Employee Alumnus

If there are issues with SmartMove - please contact us at sc@checkpoint.com

We will appreciate to get a copy of the config file in order to address this issue 

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