Pinging through a non-transparent proxy

Tim ignored_mailbox at
Fri Feb 8 08:16:05 UTC 2008

On Thu, 2008-02-07 at 16:13 -0500, Joe Tseng wrote:
> I have a test network set up where the internal network, proxy and
> firewall are connected serially.  I don't have IP forwarding enabled
> on the proxy and currently I'm only able to ping up to the proxy's
> external interface.  Would anyone happen to know the iptables rules
> needed to allow for me to ping past that point or is the answer to my
> problem somewhere else?

More specific details would be needed about your setup.

Pinging is yet another type of traffic (ICMP, usually).  It isn't
something that's going to be proxied like Squid proxies HTTP, FTP, and
few others.  Start by looking at your firewall rules that deal with
ICMP, and your generic overall default rules.

(This computer runs FC7, my others run FC4, FC5 & FC6, in case that's
 important to the thread.)

Don't send private replies to my address, the mailbox is ignored.
I read messages from the public lists.

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