On September 9, 2008 11:59:02 am Parvinder Bhasin wrote:
> I am having hard time with issue that some of the DSL (ATT) are having
> issues connecting to website behind my openbsd firewall.  Now if I
> switched it back to cisco asa , access works flawlessly.
>
> Everyone including those on DSL(ATT) are able to access the website
> (with cisco) but as soon as I put my Openbsd firewall website access
> to SOME DSL (ATT) users stops working.
>
> I troubleshooted the problem to be related to "scrubbing
> (normalization of packets)".
> So I tried couple of options in scrubbing rules: and got couple of
> people experiencing the problem to work but there are few still
> complaining that they can't access the site.  I have tried this from
> multiple different connections.  Even with Verizon EVDO internet
> access , people can't access the site.  Its reallly weired and I have
> been pulling my hair on this.  I don't really want to put other
> firewall in.
>
> I would like to know what other people who are running openbsd as
> firewall are using for scrubbing.
>
> Here is what I used first time:
>
> scrub in all
>
> and then changed to
>
> scrub in all no-df
> scrub out all no-df
>
> and got few of DSL users to see the site but then others still can't.
> Verizon users can't either.
>
> Any thoughts/help highly appreciated.  I dont' want to go BALD :)
>
> Thanks

scrub in
scrub out on $ext_if max-mss 1440

has worked very well for me with my ISP. I am very interested in hearing about 
other ways of dealing with DSL connectivity.

-- 
Vijay Sankar, M.Eng., P.Eng.
ForeTell Technologies Limited
59 Flamingo Avenue, Winnipeg, MB Canada R3J 0X6
Phone: +1 204 885 9535, E-Mail: [EMAIL PROTECTED]

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