← index

Addresses with multiple ports

An archive of bnoc.xyz · view original topic →

stratospher · #1 ·

While comparing alice, bob, frank, mike, nico, dave, erin, kane and my addrman, it was interesting to see that while most IP addresses advertise 1 port - some IP addresses advertised multiple ports.

ports addresses
1 238,886
2 5,310
3 499
4 163
5 50
6 15
7 4
8 7
9 6
10 2
12 1
16 1
24 1
25 1
32 1

Checking some of these addresses with large number of ports:

index ip address total ports pattern in tried table of peers total distinct ports in tried table
1 73.252.158.134 32 8301–8332 alice, dave, erin, frank, mike, nico, me (7/9) 18
2 73.71.63.98 25 some in 8306–8431 range alice, bob, dave, frank, kane, mike, nico, me (8/9) 21
3 73.231.159.252 24 some in 8301–8332 range alice, bob, frank, nico (4/9) 7
4 79.127.184.3 16 random high ports 36863…64837 none (0/9) 0
5 65.109.115.232 12 some in 8065–8888 range, 28333 alice, bob, kane, mike, nico (5/9) 1 (only 8333)
6 162.33.177.91 10 8333, 14406…15406 all 9 9 (all the 14k/15k ports, but not 8333)

Onion addresses advertise at most 2 ports - usually 8333 (88.6%), sometimes 8334 (4.5%), sometimes both (6.9%). 8334 gets advertised but almost never works. misconfiguration I guess but wonder why it happens.

b10c · #2 ·

4.5% is quite high. Maybe interesting to check (via GitHub search) if some of node-in-a-box projects (Umbrel, raspliblitz, …) set this.

b10c · #3 ·

73.0.0.0/8 is owned by Comcast Cable Communications, LLC, an US ISP.