Re: fw and match filters (was NAT+mangle+tc)

Linux Advanced Routing and Traffic Control

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On Wed, 2004-10-13 at 01:29, Ethy H. Brito wrote:

> Ok. I created two special classes under '1:' for each interface to acomodate
> the icmp traffic.
> Now the 'tc filter ... fw ... ' lines works flawlessly.
> 
> But after I execute the 'tc filter ... fw ... ' command, every
> 'tc filter ... match ... ' after those gives me the
> 'RTNETLINK answers: Invalid argument' error.
> 
> Aren't they (fw and match) supposed to cohexist?

Hm, no. I have a setup based soley on fw-marks. After adding an u32
match filter i get no RTNETLINK messages:

# tc filter show dev imq0
filter parent 1: protocol ip pref 1 fw 
filter parent 1: protocol ip pref 1 fw handle 0x1 classid 1:10 
filter parent 1: protocol ip pref 2 fw 
filter parent 1: protocol ip pref 2 fw handle 0x2 classid 1:20 
filter parent 1: protocol ip pref 10 u32 
filter parent 1: protocol ip pref 10 u32 fh 800: ht divisor 1 
filter parent 1: protocol ip pref 10 u32 fh 800::800 order 2048 key 
  ht 800 bkt 0 flowid 1:30 
  match 312c0404/ffffffff at 12

probably some version bug? I have

# tc -V
tc utility, iproute2-ss020116


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