Ok I know this may sound silly and a very n00b question, but I have my linux machine running slackware 9 with 2 ethernet cards as my router/gateway/server

eth0 is dhcp for the cable modem i can use the internet just fine with this one

second nic

eth1 has a static address of 10.2.1.254 255.255.255.0 bcast 10.2.1.255

for some reason I cannot ping any machines on my network? they cannot ping me... I am new to slackware can someone please tell me what am I missing or need to do? Thanks

another slackware newbie here .. but ..

.. my friend .. this is tcp/ip you are dealing with
and not just linux or windoze or routers or switches .. all with
ip addresses !!

.. you have to contemplate , realize , whether nodes in your
lan ARE ON THE SAME Network ???

.. again , this is TCP/IP Addressing issue.

.. if i may be mistaken .. based on my experience .. when
supporting friends ARE ... this one :

physical interefrence ... the biggest culprit was
a network cable lying on the floor ALONGSIDE WITH a
power cable or Electrical wiring in the house )

bliv u me.

What is the IP's of the other networked PC's?

They should be 10.2.1.xxx subnet 255.255.255.0

I'm not going to get compilcated in explaining the 10.2.xxx.xxx Subnet 255.255.0.0 setup, just check and see if the first example is correctly set on the other machines.

That will allow you to network, but not share the internet connection!
Post again if you want the network to share the internet connection.

well now I feel stupid, I found the problem. My dog chewed on the network cable that I just replaced a week ago, ( so I figured it wasnt the cable... heh)

Anyways, all the computers are on the same network ( the good thing is I am not a complete newbie to networking, though i feel like one know! Thank goodness for Mr. Garwick my highschool computer teacher!)

So how could I go about getting my network connection shared?

I have machines
Athlon XP 2400+ with Windows XP Pro on 10.2.1.2/24
Pentium 4 1.6ghz with Windows XP Pro on 10.2.1.1/24
Laptop (not sure of specs) with Windows XP Home to recieve DHCP from Linux machine.

See if this helps! --> <--

I typed
like that post said and this is what I get, (also when i run my rc.firewall-2.4


root@haloid:~# /usr/sbin/iptables -t nat -A POSTROUTING -s 10.2.1.0/24 -d 0/0 -j MASQUERADE
/lib/modules/2.4.20/kernel/net/ipv4/netfilter/ip_tables.o.gz: init_module: Device or resource busy
/lib/modules/2.4.20/kernel/net/ipv4/netfilter/ip_tables.o.gz: Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters.
You may find more information in syslog or the output from dmesg
/lib/modules/2.4.20/kernel/net/ipv4/netfilter/ip_tables.o.gz: insmod /lib/modules/2.4.20/kernel/net/ipv4/netfilter/ip_tables.o.gz failed
/lib/modules/2.4.20/kernel/net/ipv4/netfilter/ip_tables.o.gz: insmod ip_tables failed
iptables v1.2.7a: can't initialize iptables table `nat': iptables who? (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.
root@haloid:~#


I am a bit confused... dont i have most current version i believe?!

does anyone have an idea? i hate to double post... sorry