B3170 uTorrent Double-counts certain peers

[funchords]

B3170 uTorrent Double-counts certain peers

On a new swarm that I am seeding to a private swarm (No DHT/PEX, not a lot of thrash), I noticed that the General Tab said for Peers: 12 of 20 connected (14 in swarm). If accurate, it would unusual for this group and tracker for my client to have six more known peers than the tracker has so soon in a new swarm.

I copied the peer list (Click on Peers tab, right click on the display, choose "Copy Peer List" and pasted it into Notepad. Indeed there were 20 lines, but 6 of them are duplicate IP addresses.

Note, I have obfuscated the first octet of the IP address:

zzz.216.172.222:25137

zzz.175.215.65:26399

zzz.244.239.129:65535

zzz.230.184.200:43032

zzz.7.37.136:29488

zzz.9.171.233:65535

zzz.21.8.3:65535

zzz.249.61.213:22

zzz.194.115.106:65535

zzz.50.203.26:65535

zzz.67.233.167:65535

zzz.143.124.7:31638

zzz.244.239.129:7261 (dup)

zzz.193.199.151:7837

zzz.67.233.167:53206 (dup)

zzz.9.171.233:8888 (dup)

zzz.21.8.3:24895 (dup)

zzz.50.203.26:31962 (dup)

zzz.93.101.79:6881

zzz.194.115.106:49575 (dup)

This confirmed that the correct display should have been Peers: 12 of 14 connected (14 in swarm) -- like I said, it's a stable group.

In each case, the earlier entry has a port of "65535" (some sentinal value?). Perhaps if the first contact was Incoming, then uTorrent is counting it a second time when the IP address is reported by the tracker? I'm guessing, but hopefully this is enough to go on, since I don't know for sure what port 65535 means to uTorrent.

[Switeck]

Port 65535 probably means port unknown.

I've heard it's BitSpirit/BitLord/BitComet versions that are reporting their ip to the tracker like that due to a common bug they all have.

I've got problems with my µTorrent also thinking its internet ip is a separate peer/seed to connect to.

[funchords]

> I've got problems with my µTorrent also thinking its internet ip is a separate peer/seed

> to connect to.

Really that is not a problem. If all clients do not work that way (at least as a fallback), I would be surprised.

uTorrent may not know its external IP (for its basic functionality, there is no reason that it has to know it). But once it connects to itself, it will notice that the PeerID is the same and disconnect.

[Switeck]

Your ip will still count as '1' on the tracker...so it will seem like there another peer/seed you could connect to on a dead torrent.