Meaning of the 2 PING parameters from TPLINK A20 firewall
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Sir/Madam,
I enabled the firewall on my TPLINK C4000 A20 WiFi router. So far so far so good, i.e., everything that used to work before is still working fine.
However, I do not understand the 3 parameters of this feature/option. They (all check boxes) are as follows:
(1) Enable SPI firewall
(2) Allow pings from the WAN port
(3) Allow pings from the LAN port
I checked all 3 boxes. The first is clear and obvious, but I do not have any idea what the 2nd and 3rd (pins from WAN/LAN) are meant to accomplish.
At this moment I am guessing that the WAN port is the connection to the modem of my ISP, so to allow pings from WAN port could mean I am permitting pings to "come in" from any host on the Internet. As to the LAN port, I am guessing this means any device on my local network: any device connected (wired or wireless) to the WiFi router.
Would be grateful for any guidance or references that would enlighten me on the proper use of these firewall parameters.
Thanking you in advance.
