WLAN Pros Toolbox

Fixed: on iPhone and iPad the signal-to-noise ratio could be reported as a negative number, and a strong connection could be graded as poor because of it. If the app told you your Wi-Fi was weak on a link you knew was good, this was why. The four bundled channel allocation cards have been reissued. The versions shipped before this release captioned U-NII-4 as not available for unlicensed use, which is no longer the case, and showed Standard Power carrying Low Power Indoor's channel ladder. If you printed one of those cards, print it again. Subnet Planner does the IPv4 block math that spans more than one network. Split carves a parent block into right-sized subnets from a list of host counts, so the /22 you were handed for the site becomes a VLAN for staff, one for guests, one for the IoT gear and a point-to-point link. Summarize runs the same math backwards: paste a list of networks and get the single block that covers them all, plus the smallest set of blocks that covers them exactly. Useful when you are writing a route or an ACL and want one line instead of nine. Summarize also prints what the covering block claims that you never asked for. Give it 10.0.0.0/24 and 10.0.3.0/24 and the answer is 10.0.0.0/22, along with the 512 addresses it swallows on the way: 10.0.1.0/24 and 10.0.2.0/24. Transfer Time divides a file size by a link speed and solves for whichever of the three you are missing: how long the firmware push takes, how fast the link has to be to finish inside your maintenance window, or how much data moves in that window. Link speeds are quoted in bits and file sizes in bytes, and the factor of 8 between them is where the wrong answers come from, so your input is restated in bits under every answer. 1 GB at 100 Mbps is 1 min 20 s. The same file quoted as 1 GiB is 1 min 25.9 s, and that gap on a single gigabyte is why the decimal and binary units are kept apart. BSS Load is on the tool list, and on an iPhone or iPad it will not give you a reading. No beacon information elements reach the app on iOS, so the screen opens and tells you it received none rather than showing you a blank. On macOS it decodes element 11 of the beacon: how many stations the access point says are associated, how busy it senses the medium to be, and how much admission capacity it has left. Those are the access point's own numbers about itself, so two access points on one channel can honestly disagree. Plenty of access points never send the element at all, and knowing that is itself a finding.