Don't forget to add the pub at the end of the arp
ex:
arp -s 205.148.243.3 <mac address of the external firewall> pub
verry important since anyone arping for that external address your firewall
has to respond to it.
_______________________________________
Michael Pires
Security Analyst
Teleglobe Inc.
TEL: (514) 868-8713
FAX: (514) 868-8281
E-MAIL: [EMAIL PROTECTED]
-----Original Message-----
From: Jey Baskar [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 15, 2001 10:28 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED];
[EMAIL PROTECTED]
Subject: RE: [FW1] NAT Problem in CP-Firewall
I did follow the suggestion of adding the arp entry and the route but I am
still struck up the same problem.
After adding the following entries
1. arp -s 205.148.243.3 <mac address of the external firewall>
2. route add 205.148.243.3 10.1.3.5
it doesn't seems working. I also added the next hop inside the firewall too
!!
Thanks for your time and suggestion
Jey!
>>> Mustetab Ali Khan <[EMAIL PROTECTED]> 01/14/01 10:08AM >>>
Dear BASKAR,
You also need to add an arp entry for the natted address ...
arp - 205.148.243.3 <mac address of the firewall external card>
in addition u need to add a route as follows
route add 205.148.243.3 <10.x.x.x> ip of the firewall internal card
-Mustetab
Network Security Engineer
HCL Comnet Systems & Services
-----Original Message-----
From: ITN (Bipin Mehta)
To: 'Jey Baskar'; [EMAIL PROTECTED]
Sent: 01/14/2001 6:25 PM
Subject: RE: [FW1] NAT Problem in CP-Firewall
You need to add a static route on your firewall for the translated
address (205.148.243.3)to the next hop inside the firewall or to the
internal ethernet port because before translation the firewall does
internal routing.
-----Original Message-----
From: Jey Baskar [ mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
]
Sent: Saturday, January 13, 2001 1:02 AM
To: [EMAIL PROTECTED]
Subject: [FW1] NAT Problem in CP-Firewall
Hello,
We have installed Checkpoint Firewall-1 in our environment. I am facing
a problem of unable to PING to the NATted address.
10.1.3.15 205.148.243.2 205.148.243.1
HOSTA ------- FIREWALL -------- ROUTER ---------- INTERNET
I have a hostA 10.1.3.15 which is on the internal network. It can ping
to the Firewall [205.148.243.2] and to the router [205.148.243.1]
without any problems.
On the Firewall I have static Address Translation for the 10.1.3.15 and
set it as 205.148.243.3
The problem is I can PING to the firewall [205.148.243.2] successfully
from the internal and external network but CANNOT ping to the static
address [205.148.243.3] either from the internal nor from the external
network. Even from the Firewall server, I CANNOT ping to the NATed
address [205.148.243.3]
I have set the NAT and rules properly.
Any help to fix this problem will be greatly appreciated!
Thanks
Jey
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