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Re: ipfwadm question.



Just a thought. Do you other machines have 192.168.20.254
shown as your gateway?


Marc-Adrian Napoli <marcadrian@cia.com.au> wrote:
: hi all,

: quick ipfwadm question.

: ethernet cards are as so:

: eth0      Link encap:Ethernet  HWaddr 00:00:E8:74:32:FD
:           inet addr:192.168.20.254  Bcast:192.168.20.255  Mask:255.255.255.0
:           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
:           RX packets:3042 errors:0 dropped:0 overruns:0
:           TX packets:1038 errors:0 dropped:0 overruns:0
:           Interrupt:10 Base address:0xfca0

: eth1      Link encap:Ethernet  HWaddr 00:00:E8:D6:D5:21
:           inet addr:203.17.240.6  Bcast:203.17.240.255  Mask:255.255.255.224
:           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
:           RX packets:14850 errors:0 dropped:0 overruns:0
:           TX packets:1203 errors:0 dropped:0 overruns:0
:           Interrupt:11 Base address:0xfcc0

: machine running IP masquerading for a 192.168.20 network. Through eth0 i can
: ping all internal machines (who are getting IP's off dhcp running off the
: eth0 of this machine). Through eth1 i can ping sites outside on the net.

: [root@fw init.d]# ipfwadm -I -l
: IP firewall input rules, default policy: accept

: [root@fw init.d]# ipfwadm -O -l
: IP firewall output rules, default policy: accept

: [root@fw init.d]# ipfwadm -F -l
: IP firewall forward rules, default policy: accept
: type  prot source               destination          ports
: acc/m all  192.168.20.0/24      anywhere             n/a

: None of the 192.168.20 machines can get anything out on the web. (nor any
: other sort of traffic for that matter). I'm assuming there is a problem with
: the masquerading.

: Am i missing anything here?

: Regards,

: Marc-Adrian Napoli
: Connect Infobahn Australia
: +61 2 92811750




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