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Re: [FW-1] Not able to ping from FW to either way
Hi Don,
Many thanks for your efforts, actually the diagram is like this
Host(172.16.1.134)----FW(172.16.1.1 & 206.234.243.19)
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Router
(206.234.243.1)
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Internet
I am only trying to do static IP NAT for one host, rest all are on valid
Internet IPs.
My route print shows:
Active Routes:
Network Destination Netmask Gateway
Interface Metric
0.0.0.0 0.0.0.0
206.234.243.1 206.234.243.19 1
127.0.0.0 255.0.0.0
127.0.0.1 127.0.0.1 1
172.16.0.0 255.255.252.0 172.16.1.1
172.16.1.1 1
172.16.1.1 255.255.255.255 127.0.0.1
127.0.0.1 1
172.16.255.255 255.255.255.255 172.16.1.1
172.16.1.1 1
206.234.243.0 255.255.255.0 206.234.243.19
206.234.243.19 1
206.234.243.19 255.255.255.255 127.0.0.1
127.0.0.1 1
206.234.243.134 255.255.255.255 172.16.1.134
172.16.1.1 1
206.234.243.255 255.255.255.255 206.234.243.19
206.234.243.19 1
224.0.0.0 224.0.0.0
172.16.1.1 172.16.1.1 1
224.0.0.0 224.0.0.0
206.234.243.19 206.234.243.19 1
255.255.255.255 255.255.255.255 172.16.1.1
172.16.1.1 1
I
Kindly Guide,
Thanks,
Puneet
-----Original Message-----
From: Mailing list for discussion of Firewall-1
[mailto:[email protected]]On Behalf Of Don
Sent: Monday, January 14, 2002 4:44 PM
To: [email protected]
Subject: Re: [FW-1] Not able to ping from FW to either way
> I am new to Checkpoint FW, so kindly bear with me and guide me urgently..
> Problem:
>
> 1) I have two ethernet cards on my FW machine.One with Valid Internet IP
and
> other LAN IP (192.168.1.1), I have all the real IPs in my network.
>
> ISP------------Router-------Hubs----------------(E0)--FW
>
machine--(E1)------------------------------HUB-----------------192.168.1.134
> | (Valid IP-206.x.y.z,
> (LAN IP-192.168.1.1
> |
> 255.255.255.0) ,255.255.255.0)
> |
> |
> |
> Workstations(with Valid IPs)
>
> I am not able to ping from 192.168.1.1 to 192.168.1.134 and vice
> versa?? Cards are responding to self ping i.e. if I ping 192.168.1.1or
> 192.168.1.134 from the same
> machine, I get replies from the ehernet cards !!
What is your firewall rulset? Unless you have explicitly allowed ICMP to
and from the firewall, all such traffic will be dropped.
> 2) I am also not able to ping my router's valid Internet IP from my
> FW's valid Internet IP although I have added the routes. I want to do
> Static NAT, I did all the steps, but when I am not able to ping the two
> machines, I guess NATing won't work.
Your network diagram is, to say the least, confusing.
Does it look something like this:
Host -- Firewall -- Router -- Internet
Host IP: 192.168.1.1.34
Firewall Internal: 192.168.1.1
Firewall External: 206.2.3.2/24 (Just an example)
Router Internal: 206.2.3.1/24 (Just an example)
Router external: a.b.c.d/30
The router should have a default route through its serial interface.
The firewall should have a default route through 206.2.3.1.
The hosts on the internal network should have a default route through
192.168.1.1.
You should be running hide-mode NAT on the the firewall for the internal
network.
Unless you have a specific rule on your firewall, you will not be able to
ping to or from the firewall while it is running.
-Don
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