Mailinglist Archive: opensuse (1555 mails)

["Carlos E. R." <robin.listas@xxxxxxxxxxxxxx>]

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On Wednesday, 2009-07-01 at 14:47 -0400, Boris Epstein wrote:

> > Cups uses udp on port 631.
>
> Thanks, Per!
>
> Opening incoming connections to UDP 631 as well as from UDP 631 does
> not seem to help... So I am guessing it must be something else
> involved here.

For discovery to work, I think you might need to allow broadcast in to 
631.

# Note that if you allow specifc ports here it just means that broadcast
# packets for that port are not dropped. You still need to set
# FW_SERVICES_*_UDP to actually allow regular unicast packets to
# reach the applications.
#
# Format: either
#           - "yes" or "no"
#           - list of udp destination ports
#
# Examples: - "631 137" allow broadcast packets on port 631 and 137
#              to enter the machine but drop any other broadcasts
#           - "yes" do not install any extra drop rules for
#              broadcast packets. They'll be treated just as unicast
#              packets in this case.
#           - "no" drop all broadcast packets before other filtering
#              rules
#
# defaults to "no" if not set

Like:

FW_ALLOW_FW_BROADCAST_INT="ipp netbios-ns netbios-dgm"


- -- 
Cheers,
       Carlos E. R.

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