Date: Thu, 6 Jan 2011 16:29:32 +0700
From: pa...@poluan.info
To: support@pfsense.com
Subject: Re: [pfSense Support] Re: Trouble with VIP?

Please find attached the screenshot of my firewall.

Explanation:
+ "... Public" is an alias for 10.2.2.8 and 10.2.2.9
+ The four blackened nets are 192.168.1.

Rgds,
--Pandu E Poluan



On Thu, Jan 6, 2011 at 15:22, Abdulrehman <arvagabo...@gmail.com> wrote:

ok...for DNS...you need to allow both TCP and UDP....Can you share the screen 
shot of your firewall rule..?


On Thu, Jan 6, 2011 at 1:18 PM, Pandu Poluan <pa...@poluan.info> wrote:


Yes, I was accessing the external IP address from a different network.




E.g. The 100.x.y.z is on ISP A, I tried to access it from a computer

with IP 200.p.q.r on ISP B.



Rgds,





On 2011-01-06, Abdulrehman <arvagabo...@gmail.com> wrote:

> You can not access the public IP address of the same IP pool. You have this

> 100.2.2.8/25 on your WAN interface. Check this 100.2.2.9:53 from outside

> your network. From inside, you can not use this (100.2.2.9:53) address to

> query your DNS. Use the internal network address of the DNS server.

>

> On Thu, Jan 6, 2011 at 10:58 AM, Pandu Poluan <pa...@poluan.info> wrote:

>

>> Hello again!

>>

>> I think I'm having trouble with VIP.

>>

>> The scenario is this (IP addresses obfuscated):

>> + WAN address is 100.2.2.8/25

>> + LAN address is 192.168.1.1/24

>> + I create a VIP, CARP, 100.2.2.9/25

>>

>> Now, I tried to make a NAT:

>> + 100.2.2.9:53 forwards to 192.168.1.20:53

>> + A firewall rule is automatically created

>>

>> However, all attempts to contact the DNS Server via 100.2.2.9:53 fail.

>>

>> If I try ping-ing an external IP address from the DNS Server

>> (192.168.1.20), it works.

>>

>> Where did I go wrong?

>>

>> --

>> Pandu E Poluan



I may be wrong, but shouldn't the VIP be a /32 not a /25?

                                          

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