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Date:      Thu, 21 Oct 1999 18:18:52 -0200
From:      "=?iso-8859-1?Q?Josu=E9=20Jos=E9?= Souza Jr." <josue@nexos.com.br>
To:        freebsd-questions@FreeBSD.ORG, freebsd-security@FreeBSD.ORG
Subject:   Natd problem
Message-ID:  <380F752C.19B28700@nexos.com.br>

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Hello,

we administrate a network that has about 700 machines using a firewall
with natd. The network deals with high traffic and is configured like
this:


              Internet
                  |
                  |
                  | ISA adapter 10Mbps
              ----------
             |          | PCI adapter 100Mbps
             | Firewall |------------------------Extranet
             |          |
              ----------
                  | PCI adapter 100Mbps
                  |
                  |
              Intranet


The problem is that sometimes we get this error message from natd

Oct 21 16:04:49 fw natd[106]: failed to write packet back (Host is
down)

The machine also hangs up in a two times in a week basis.
Could this be caused by the traffic on the ISA adapter? Does anyone
have any hints about this problem?

Thanks in advance,

-- 
------------------------------------------
Josué José Souza Jr. - Operações e Suporte   
josue@nexos.com.br
Nexos Serviços de Redes Ltda.
http://www.nexos.com.br

Salvador - Bahia - Brasil
------------------------------------------


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