27: Configuring firewall 
_______________________________________________________________________________________________________ 
_____________________________________________________________________________________________________ 
© Virtual Access 2017 
GW1000 Series User Manual 
Issue: 1.9    Page 252 of 350 
Web: Destination port 
UCI: firewall.<rule label>.dest_port 
Opt: dest_port 
For DNAT, redirects matched incoming traffic to the given port on 
the internal host. 
For SNAT, matches traffic directed at the given ports. 
Web: Action 
UCI: firewall.<rule label>.target 
Opt: target 
Action to take when rule is matched. 
Web: Extra arguments 
UCI: firewall.<rule label>.extra 
Opt: extra 
Passes extra arguments to IP tables. This is useful to specify 
additional match options, like -m policy --dir in for IPSec. 
Web: n/a 
UCI: firewall.<rule label>.reflection 
Opt: reflection 
Disables NAT reflection for this redirect if set to 0. Applicable to 
DNAT targets. 
Web: n/a 
UCI: firewall.<rule label>.limit 
Opt: limit 
Sets maximum average matching rate; specified as a number, 
with an optional /second, /minute, /hour or /day suffix. Example 
3/hour. 
Web: n/a 
UCI:  firewall.<rule label>.limit_burst 
Opt: limit_burst 
Sets maximum initial number of packets to match. This number 
gets recharged by one every time the limit specified above is not 
reached, up to this number. 
Web: n/a 
UCI:  firewall.<rule label>.recent 
Opt: recent 
Sets number of allowed connections within specified time. This 
command takes two values e.g. recent=2 120 will allow 2 
connections within 120 seconds. 
Table 87: Information table for firewall traffic rules 
host-precedence-
violation  
ttl-zero-during-
reassembly  
Table 88: Information table for match ICMP type drop-down menu