From: Julian Anastasov <ja@ssi.bg>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Can I Classify Non-IP Traffic?
Date: Fri, 03 Jan 2003 21:23:12 +0000 [thread overview]
Message-ID: <marc-lartc-104162889202775@msgid-missing> (raw)
In-Reply-To: <marc-lartc-104152616513416@msgid-missing>
Hello,
On Thu, 2 Jan 2003, Martin A. Brown wrote:
> : > Decimal Ofs Description
> : > -----------------------------------
> : > -14: DST MAC, 6 bytes
> : > -8: SRC MAC, 6 bytes
> : > -2: Eth PROTO, 2 bytes, eg. ETH_P_IP
> : > 0: Protocol header (IP Header)
Yes, I'm using sort of:
Egress (match Dst MAC):
... match u16 0xPPPP 0xFFFF at -2 match u32 0xM2M3M4M5 0xFFFFFFFF at -12 match u16 0xM0M1 0xFFFF at -14
Ingress (match Src MAC):
... match u16 0xPPPP 0xFFFF at -2 match u16 0xM4M5 0xFFFF at -4 match u32 0xM0M1M2M3 0xFFFFFFFF at -8
Where PPPP is the Eth Proto Code (from linux/include/linux/if_ether.h):
0800 ETH_P_IP
and M0..M5 are the 6 bytes of the MAC address
Example for matching ETH_P_IP for MAC 00:11:22:33:44:55
Egress:
... match u16 0x0800 0xFFFF at -2 match u32 0x22334455 0xFFFFFFFF at -12 match u16 0x0011 0xFFFF at -14
Ingress:
... match u16 0x0800 0xFFFF at -2 match u16 0x4455 0xFFFF at -4 match u32 0x00112233 0xFFFFFFFF at -8
Regards
--
Julian Anastasov <ja@ssi.bg>
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prev parent reply other threads:[~2003-01-03 21:23 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-02 16:40 [LARTC] Can I Classify Non-IP Traffic? Griff@BP3Web
2003-01-02 17:05 ` Ivo De Decker
2003-01-02 19:41 ` Jose Luis Domingo Lopez
2003-01-02 19:51 ` Martin A. Brown
2003-01-03 3:00 ` Hannes Ebner
2003-01-03 5:36 ` Martin A. Brown
2003-01-03 21:23 ` Julian Anastasov [this message]
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