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Johan_Rudberg
Contributor

Proxy ARP on R80.20

Hello

 

We have for sometime now been trying getting our Checkpoint Firewall to 1 to 1 NAT our VOIP phones.

What we just found out was that if we configure a 1 to 1 NAT rule like a /23 subnet to /23 subnet the firewall does not Proxy ARP the NAT subnet in case. 

A NAT rule with a /32 to /32 mask on it them will not work either.

However if we configure a 1 to 1 NAT rule wtih host objects like 1 host to 1 other host, the Proxy ARP works just fine.

This SK: https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solut... seems not aplicable on R80.20 since the variable of: $CP_AUTO_ARP_FOR_MANUAL_NAT_RULES

is already "1" 

Is this a bug or what? 

 

//Johan

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