2.0 using Differentiated services codepoint that is not in the pulldown?
I want to prioritize SSH interactive traffic over SSH throughput traffic such as scp. By default openssh sets a DSCP of 0x04 for Interactive traffic and 0x02 for scp traffic. In advanced Diffserv Code Point pulldown there is not a bucket for 0x02. and the 0x04 bucket is in a bucket of 0x04 - 0xfc.
I can currently use the latter bucket to prioritize the interactive traffic as I don't have any other collisions with the values in that bucket. But there does not seem to be a way to set 0x02 to penalize scp traffic.
How would I go about entering custom values for this field?
There isn't a mechanism to do custom fields there. If you open a ticket at http://redmine.pfsense.org and explain this there, it can probably be added.
If you want to test it first, you can edit usr/local/www/guiconfig.inc and add it to the array $firewall_rules_dscp_types there.