After switching to new firewall, certain print jobs fail w/ data status byte

[Scott Trafford]

I received a reply from Martin Schuster (Thanks again Martin, you are the man!) about MTU settings.  I had already lowered the MTU on the firewalls to try and help this work, but what I was unaware of was the fact that RHEL has a default MTU of 1500.  So, anybody else who is experiencing this, here is what to do:

To set on Linux (RHEL) use the following (temporary to test):

	# ip link set dev eth0 mtu 1350

To set permanently edit the interface configuration file (/etc/sysconfig/network-scripts/ifcfg-eth0)
and add the following line:
MTU=1350
Next, restart the network interface:

	# service network restart eth0

To confirm the updated MTU:

	# ifconfig eth0
	eth0   Link encap:Ethernet  HWaddr 00:19:B9:DC:D5:43
	       inet addr:192.168.5.2  Bcast:192.168.5.255  Mask:255.255.255.0
	       inet6 addr: fe80::219:b9ff:fedc:d543/64 Scope:Link
	       UP BROADCAST RUNNING MULTICAST  MTU:1400  Metric:1
	       RX packets:5344 errors:0 dropped:0 overruns:0 frame:0
	       TX packets:4147 errors:0 dropped:0 overruns:0 carrier:0
	       collisions:0 txqueuelen:1000
	       RX bytes:439263 (428.9 KiB)  TX bytes:1404255 (1.3 MiB)
	       Interrupt:169 Memory:f8000000-f8012100

Hope this helps somebody.

-Scott