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Date:      Wed, 1 Dec 1999 17:35:15 -0800
From:      "nat" <nat@unixlover.com>
To:        "Nathaniel Schein" <nschein@prisa.com>, <freebsd-questions@freebsd.org>
Subject:   Re: natd not working properly. firewall problem?
Message-ID:  <003601bf3c65$8ea366a0$2d96183f@vedika>
References:  <NDBBICKHJKPPFKPKPBFEEELDCOAA.nschein@prisa.com>

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no.. it still doesnt work.
> Did you compile the kernel with:
>
> options         IPFIREWALL              #firewall
> options         IPDIVERT                #divert sockets
> pseudo-device   bpfilter 4      #Berkeley packet filter
>
> Also make sure you have proper connectivity with both networks and add
>
> firewall_type="OPEN"
>
> to the /etc/rc.conf
>
> -----Original Message-----
> From: owner-freebsd-questions@FreeBSD.ORG
> [mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of nat
> Sent: Wednesday, December 01, 1999 5:05 PM
> To: Nathaniel Schein; freebsd-questions@FreeBSD.ORG
> Subject: Re: natd not working properly. firewall problem?
>
>
> i did that and it is still not working. please help I have a dead
> line to set up this network.
>
>
> Your natd interface should be "de1".
> -----Original Message-----
> From: owner-freebsd-questions@FreeBSD.ORG
> [mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of nat
> Sent: Wednesday, December 01, 1999 4:31 PM
> To: freebsd-questions@FreeBSD.ORG
> Subject: natd not working properly. firewall problem?
>
>
> I have set up natd by the manual. I have a cable modem and two
> nics. what i am trying to do is share the internet with other users
> on my LAN. The cable modem is currently setup on device de1
> properly and works for the "local" user.
>
> Now, throgh the clients I can only contact the network card (de1)
> that the cable modem is connected to. I cannot contact the outside
> network.
>
> The de0 interface is the one on the internal network and is set to
> 192.168.0.1. All of the clients have this as the default router.
>
> these are my firewall settings (please tell me which ones are wrong):
> #Flush out the list before we begin.
> $fwcmd -f flush
>
> # divert
> $fwcmd add 1 divert natd from any to any via de0
>
> # allow by default
> $fwcmd add 65000 allow all from any to any
>
> # 50-99: trusted hosts
> $fwcmd add 50 allow ip from any to 207.171.202.198:255.255.255.224
> $fwcmd add 51 allow ip from 207.171.202.198:255.255.255.224 to any
> $fwcmd add 52 allow ip from 24.1.183.147 to any
> $fwcmd add 53 allow ip from any to 24.1.183.147
>
> # 1000-1999: DoS/hack prevention
> $fwcmd add 1000 deny tcp from any to any 1080
> $fwcmd add 1001 deny tcp from any to any 12345
> $fwcmd add 1002 deny tcp from any to any 31337
> $fwcmd add 1003 deny tcp from any to any 111
> $fwcmd add 1004 deny tcp from any to any 87
> $fwcmd add 1005 deny tcp from any to any 2049
> $fwcmd add 1006 deny tcp from any to any 512
> $fwcmd add 1007 deny tcp from any to any 513
> $fwcmd add 1008 deny tcp from any to any 514
> $fwcmd add 1009 deny tcp from any to any 515
> $fwcmd add 1010 deny tcp from any to any 540
>
> *this is in the /etc/rc.firewall file.
>
> This is what i have set up for rc.conf:
>
> firewall_enable="YES"
> natd_enable="YES"
> natd_interface="de0"
> named_enable="YES"
> gateway_enable="YES"
>
> this is the output of the ifconfig -a command:
>
> de0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255
>         ether 00:40:05:a2:c9:4b
>         media: autoselect (10baseT/UTP) status: active
>         supported media: autoselect 100baseTX <full-duplex> 100baseTX
> 10baseT/UTP <full-duplex> 10baseT/UTP
> de1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         inet 24.1.177.140 netmask 0xffffff00 broadcast 24.1.177.255
>         ether 00:40:05:a2:c9:49
>         media: autoselect (10baseT/UTP) status: active
>         supported media: autoselect 100baseTX <full-duplex> 100baseTX
> 10baseT/UTP <full-duplex> 10baseT/UTP
> lp0: flags=8810<POINTOPOINT,SIMPLEX,MULTICAST> mtu 1500
> tun0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
> sl0: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 552
> ppp0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
>         inet 127.0.0.1 netmask 0xff000000
>
> This is the output of the netstat -rn command:
>
> Internet:
> Destination        Gateway            Flags     Refs     Use     Netif
> Expire
> default            24.1.177.1         UGSc       14       55      de0
> 24.1.177/24        link#1             UC          0        0      de0
> 24.1.177.1         link#1             UHLW       14        0      de0
> 127.0.0.1          127.0.0.1          UH          1        4      lo0
> 192.168            link#2             UC          0        0      de1
> 192.168.0.3        0:40:5:a3:38:a4    UHLW        2       76      de1
1183
>
> I think that is how you set it up.
>
> There is also one last strange thing that I think might be the problem.
> Right before it prints out gateway=yes it says tcpextensions=no.
> Im not sure what that means either.
>
> I am using the Cox@home network so please help me if you can.
>
> Thank you,
>
> nat
>
>
>
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