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From: Michal Soltys <nozo@ziu.info>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] I'm having an issue with u32 masking
Date: Tue, 18 Sep 2007 08:44:42 +0000	[thread overview]
Message-ID: <46EF8FFA.6070707@ziu.info> (raw)
In-Reply-To: <46EF6840.90305@vadtec.net>

Vadtec wrote:
> Is this how tc is supposed to work? Does it only match on the value it 
> is given based on whether or not the mask matches? IE: u16 0x1a00 0x1a0f 
> at 22 (dest port 6656 ONLY), u16 0x1a0b 0x1a0f at 22 (dest port 6667 ONLY)
> 
> If so, how can you match a range of ports (in my example, or a range of 
> anything for that matter) in tc?
> 

Try:

match u16 0x1a00 0xfff0

Mask is first applied to the value in the packet, then it's tested 
against your (0x1a00) value.

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      reply	other threads:[~2007-09-18  8:44 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-18  5:55 [LARTC] I'm having an issue with u32 masking Vadtec
2007-09-18  8:44 ` Michal Soltys [this message]

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