Re: Centos firewall/router issue

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]



On 22/02/07, Dustin Krysak <d.k.emaillists@xxxxxxxxx> wrote:
Good day everyone. Today has been "one of those..." days. So I have a
feeling this is just a brain lapse here.

At any rate, I am setting up a firewall/router using centos 4.4
(minimal install, yummed up to date).

It "seems" like the traffic is not being forwarded, but I have run the
following command to confirm the ip forwarding is on:

# cat /proc/sys/net/ipv4/ip_forward

And I do in fact have a "1" in there.

Is the firewall NATing outbound traffic? If you can, can you stop
iptables and just see if simple IP routing is working as expected? If
you tcpdump all traffic for a little used port on both interfaces,
then try telneting out to that port on an external host, does the
packet appear on the external interface? What do the routing tables
look like?

Just a few suggestions.

Will.
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos

[Index of Archives]     [CentOS]     [CentOS Announce]     [CentOS Development]     [CentOS ARM Devel]     [CentOS Docs]     [CentOS Virtualization]     [Carrier Grade Linux]     [Linux Media]     [Asterisk]     [DCCP]     [Netdev]     [Xorg]     [Linux USB]
  Powered by Linux