Hi,
So I’ve read that port 1 is configured on a 750UP as a “WAN” interface.
Is it possible to access the web interface from this port? I don’t know if I need firewall rules to explicitly allow it or if there is a setting somewhere..?
I’m not hooking port 1 up to a DSL modem, but instead its connected to another router with a /30:
Router (x.x.x.253/30) — (wireless bridge radios) — (750UP Port 1 x.x.x.254/30)
Thanks.
You should post “/ip firewall filter”.
FYI: Some ISPs block port 80 requests to residential ips. Mine does. I have commercial accounts, so I am not blocked. If that is the case, you might want to move the service to another port.
/ip service
set www port=8088
Then access it like this:
http://1.2.3.4:8088
Replace 1.2.3.4 with your public ip.
as OP noted - it is configured as WAN interface, and there are no router services available to be accessed via WAN interface in default configuration of RouterOS.
You will need to check “/ip services” and “/ip firewall filter” to allow certain services to become available via WAN interface.
you can find RouterOS documentation and configuration examples here:
http://wiki.mikrotik.com/wiki/Main_Page
Also, there are a lot of security discussions here on the forums, just use search option.
OH NO!! All my RB433s and RB433AHs are broken. I can access all the services on the WAN interface. You guys better get to patching that up. 
edit: You did mean just the RB7xx series, correct?
SOHO routers mostly have a default configuration. Usually existence of the configuration is mentioned on the box of the product.
RB433(AH) does not have cardboard boxes as part of the packaging.
Thanks, janisk. Is there somewhere the default firewall configuration for the RB7xx series is available online?
you can find here on the wiki as part of user-manual:
http://wiki.mikrotik.com/wiki/Manual:Default_Configurations
That is exactly what I was looking for! 
Yup there’s default firewall rules that block everything on port 1.
Disabling the rules causes it to work.
Duh!
Thanks.