PEX Peer Exchange
PEX is a protocol extension that allows peers to exchange addresses of other peers with each other, in order to maximize the visibility between peers in the swarm. It is usually best to leave the PEX mode set to "Send/Receive".
SSDP Local Peer Discovery
SSDP Local Peer Discovery is used for finding peers on your LAN. This feature defaults to inactive (for top security on unsecured LANs), but can be set so that all transfers are announced, or just a few can be enabled individually via the Options tab for the transfer. The announcement protocol is the same SSDP over multicast protocol used by other clients, and is fully compatible. However, it should be noted that this protocol, while compatible with other clients, uses no encryption and allows anyone else on your LAN to theoretically identify and log any transfers that are being announced.
Auto-Ignore Bad Piece Threshold
The remote peer will be blocked if the amount of received invalid pieces exceeds this threshold.
This is a safe-guard mechanism against peers who send junk data intentionally to slow down your download.
Auto-Ignore Deprioritize Bad Piece Threshold
The remote peer will only be deprioritized if you receive too many invalid pieces from them (exceeding this threshold).
This is a safe-guard mechanism against peers with high transmission error rate, likely their internet connection is poor. Receiving too many pieces from them may negatively impact your download speed.
Here you can configure the priority group and incoming limits of deprioritized peers.
Filters peers based on Client ID or their unique Peer ID. Allows for whitelist / blacklist / exemption rules.