4
votes
Accepted
Can I call "getNodeInfo" via UDP the same way I can call it over TCP?
There are three different protocols and ports involved when running a node:
HTTP control / API port (default tcp 14265)
TCP neighbor port (default tcp 15600)
UDP neighbor port (default udp 14600)
...
- 66
2
votes
Possible UDP MTU problems (UDP, bad length 1650 > 1368 in tcpdump)
The default Maximum Transmission Unit (MTU) for most networks is 1500 (1472 excluding headers). The IOTA paket size is 1650 (transaction + hash(request_tx) represented in bytes (1604 + 46)). To be ...
- 1,468
2
votes
Accepted
Can neighbors mix protocols?
No, different protocols will not work.
When receiving a packet from your neighbor, iri will validate if the source of the packet is in your neighbors list. As the port numbers differ, the packets ...
mihi♦
- 7,324
1
vote
Can nodes communicate among each other only via transactions?
No, it's not possible.
The UDP port indicated in the configuration only checks for transactions as incoming data.
If a neighbor sends anything else than a transaction, a log entry "Received an ...
- 921
1
vote
Good practice how to choose ports
There is a really good introduction on iota.partners
I would use the standard ports. This makes it way easier for neighbors.
UDP_RECEIVER_PORT = 14600
TCP_RECEIVER_PORT = 15600
But yes, security ...
- 840
1
vote
Good practice how to choose ports
Using a non-standard port would make it more difficult for a potential attacker to find full iota nodes. But it would take more than just finding those nodes in order to wage an attack on them. Nodes ...
- 69
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