Forwarding RealAudio thru 2.2.19 firewall?
- To: debian-firewall mailing list <firstname.lastname@example.org>
- Subject: Forwarding RealAudio thru 2.2.19 firewall?
- From: Scott Bigham <email@example.com>
- Date: Thu, 28 Jun 2001 20:48:32 -0400 (EDT)
- Message-id: <Pine.LNX.4.20.0106282024120.365-100000@rover>
Are there known issues with forwarding/masquerading RealAudio
connections through a 2.2.19 kernel? I upgraded my firewall box from
2.2.17 to 2.2.19 not long ago, and later noticed that machines on the
LAN were unable to connect to RealAudio servers. Once I realized that
the two happened at around the same time, I rebooted back into 2.2.17 to
check, and it started working again.
I've checked everything I know to check; lsmod confirms that the
ip_masq_raudio module is loaded, and ipchains -L input -M seems to
indicate that the kernel is at least trying to forward the connection.
The two kernels are configured essentially the same; the only net-related
differences I can find are that in the 2.2.19 kernel, IPv6 is included
(as a module, which doesn't show up in lsmod) and IP-over-IP tunneling is
built-in instead of a module. I even went so far as to put a -l on the
ipchains ACCEPT rules for UDP ports 6970:7170, and AFAICT no packets are
even coming in on those ports during a RealAudio connection attempt.
I'm at wit's end here. Am I missing something obvious?