* Adding a rule with invalid interface name
@ 2004-09-16 12:34 Swapnil Nagle
2004-09-16 15:42 ` Phil Oester
0 siblings, 1 reply; 2+ messages in thread
From: Swapnil Nagle @ 2004-09-16 12:34 UTC (permalink / raw)
To: netfilter-devel
iptables lets me add a rule with invalid interface name :
# iptables -A FORWARD -i abc -o xyz -j ACCEPT
This is the actual command. "abc" & "xyz" are not the obfuscated
versions of some real interface names.
# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere anywhere
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
iptables version is 1.2.7a running on a stock RedHat 9 kernel (2.4.20-6)
Regards,
Swapnil.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Adding a rule with invalid interface name
2004-09-16 12:34 Adding a rule with invalid interface name Swapnil Nagle
@ 2004-09-16 15:42 ` Phil Oester
0 siblings, 0 replies; 2+ messages in thread
From: Phil Oester @ 2004-09-16 15:42 UTC (permalink / raw)
To: Swapnil Nagle; +Cc: netfilter-devel
On Thu, Sep 16, 2004 at 06:04:24PM +0530, Swapnil Nagle wrote:
>
> iptables lets me add a rule with invalid interface name :
>
> # iptables -A FORWARD -i abc -o xyz -j ACCEPT
How is iptables supposed to know that you won't at some point down
the line bring up an interface called 'abc' or 'xyz'?
Nothing invalid about iptables allowing you to add this rule...
Phil
^ permalink raw reply [flat|nested] 2+ messages in thread
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2004-09-16 12:34 Adding a rule with invalid interface name Swapnil Nagle
2004-09-16 15:42 ` Phil Oester
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