Bitcoin Core Inbound connection - page 2.

mocacinno

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To be honest, my node has been online for many, many years... So it has been a long, long time ago since i last synced a node.
But, if i remember correctly, you should be able to get inbound connections while syncing... Not 100% sure tough, but if memory serves me correct, it should.

What you could potentially do is telnet to port 8333 from either your node or another pc in your network.
IF you see an output like the following, you're listening on port 8333

Code:

telnet localhost 8333
Trying ::1...
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.

Now, do the same from OUTSIDE your LAN... Use a telnet app on your phone while connected to 3G/4G/5G (not your wifi) and try to telnet to port 8333 on your WAN ip. You can find your WAN ip by surfing to a site like https://whatismyipaddress.com/ (no affiliation) from a device connected to your wifi (or physically connected with an utp cable...

erictan90

newbie

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Quote from: mocacinno on February 16, 2022, 04:04:25 AM

Quote from: ?? on ??

Check the link, it shows:

Quote

That page doesn't exist

I do see the screenshot.... 10 outbound connections, 0 inbound... looks ok to me.

Is this a wallet, or do you want to run a full node 24/7?

Hi, is that only receiving inbound connections after it is fully synced?
I think I should check again after it is fully synced (100%).

erictan90

newbie

Activity: 22

Merit: 7

Quote from: ABCbits on February 16, 2022, 06:54:48 AM

Quote from: erictan90 on February 16, 2022, 06:31:50 AM

"You still somewhat help the network though with the outbound connections."

could you describe more about this?

Basically it means you still relay block and transaction with another Bitcoin node (where you connect to them as part of outbound connection).

Quote from: erictan90 on February 16, 2022, 06:31:50 AM

"Home connections are usually filtered by a router or modem. Bitcoin Core will request your router automatically configure itself to allow inbound connections to Bitcoin?s port, port 8333. Unfortunately many routers don?t allow automatic configuration, so you must manually configure your router. You may also need to configure your firewall to allow inbound connections to port 8333. Please see the following subsections for details. "

It is too hard for me. If I change my internet provider (router), maybe my new router will automatically configure itself to allow inbound connections to Bitcoin?

No matter ISP/router you use, usually you need to configure it by yourself. But if you're looking for easier way, enable UPnP (Universal Plug and Play) on your router and configure Bitcoin Core to use UPnP (should be availbale on Bitcoin Core setting).

Hi, how to enable UPnP (Universal Plug and Play) on my router?

NeuroticFish

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Quote from: erictan90 on February 16, 2022, 06:31:50 AM

"You still somewhat help the network though with the outbound connections."

could you describe more about this?

Even if it doesn't accept inbound connections (others connecting to you), your node initiates outbound connections (to other nodes), hence it does participate to the network. Just it will connect to a much smaller overall number of nodes.

Quote from: erictan90 on February 16, 2022, 06:31:50 AM

"Home connections are usually filtered by a router or modem. Bitcoin Core will request your router automatically configure itself to allow inbound connections to Bitcoin?s port, port 8333. Unfortunately many routers don?t allow automatic configuration, so you must manually configure your router. You may also need to configure your firewall to allow inbound connections to port 8333. Please see the following subsections for details. "

It is too hard for me. If I change my internet provider (router), maybe my new router will automatically configure itself to allow inbound connections to Bitcoin?

You may already be on the right track based on the PM you've sent. You seem to have figured out the correct IP to forward to. As I said in PM, you may have to also look into the DHCP settings to make sure your computer will get the same IP at next reboot/startup.

I don't think that you have to buy new modem.

----
Of course, another solution can be what @ETFbitcoin has been writing (UPnP), but I'm not familiar with those settings.

ABCbits

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Quote from: erictan90 on February 16, 2022, 06:31:50 AM

"You still somewhat help the network though with the outbound connections."

could you describe more about this?

Basically it means you still relay block and transaction with another Bitcoin node (where you connect to them as part of outbound connection).

Quote from: erictan90 on February 16, 2022, 06:31:50 AM

"Home connections are usually filtered by a router or modem. Bitcoin Core will request your router automatically configure itself to allow inbound connections to Bitcoin?s port, port 8333. Unfortunately many routers don?t allow automatic configuration, so you must manually configure your router. You may also need to configure your firewall to allow inbound connections to port 8333. Please see the following subsections for details. "

It is too hard for me. If I change my internet provider (router), maybe my new router will automatically configure itself to allow inbound connections to Bitcoin?

No matter ISP/router you use, usually you need to configure it by yourself. But if you're looking for easier way, enable UPnP (Universal Plug and Play) on your router and configure Bitcoin Core to use UPnP (should be availbale on Bitcoin Core setting).

erictan90

newbie

Activity: 22

Merit: 7

Quote from: NeuroticFish on February 16, 2022, 04:19:26 AM

Quote from: erictan90 on February 16, 2022, 03:49:03 AM

Please refer to image link above, is that mean I have 0 Inbound connection?

I noticed that I need Inbound connection to support Bitcoin Network.

1. The image link works for me too. I didn't embed it here because it's too big and it actually doesn't help that much.
2. Yes, you have 0 inbound connections. You still somewhat help the network though with the outbound connections.
3. If you want to allow inbound connections too, then you will have to do settings in your router (port forwarding) and probably in your firewall too (allow inbound connections, see firewall configuration). You may want to read the whole network configuration section in the Bitcoin help page.

"You still somewhat help the network though with the outbound connections."

could you describe more about this?

"Home connections are usually filtered by a router or modem. Bitcoin Core will request your router automatically configure itself to allow inbound connections to Bitcoin?s port, port 8333. Unfortunately many routers don?t allow automatic configuration, so you must manually configure your router. You may also need to configure your firewall to allow inbound connections to port 8333. Please see the following subsections for details. "

It is too hard for me. If I change my internet provider (router), maybe my new router will automatically configure itself to allow inbound connections to Bitcoin?

NeuroticFish

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Quote from: ?? on ??

okay, I try to forward port first

https://ibb.co/cQfqQPQ

like this, right?

I am noob in technical Grin

1. I have a feeling that posting this kind of pictures is not OK for your network's security.
2. The internal IP address may have to be different (not 192.168.169.1). It has to be the IP of the computer having Bitcoin Core on it. You can find that out (on that PC) with

Code:

hostname -I

NeuroticFish

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Quote from: erictan90 on February 16, 2022, 03:49:03 AM

Please refer to image link above, is that mean I have 0 Inbound connection?

I noticed that I need Inbound connection to support Bitcoin Network.

1. The image link works for me too. I didn't embed it here because it's too big and it actually doesn't help that much.
2. Yes, you have 0 inbound connections. You still somewhat help the network though with the outbound connections.
3. If you want to allow inbound connections too, then you will have to do settings in your router (port forwarding) and probably in your firewall too (allow inbound connections, see firewall configuration). You may want to read the whole network configuration section in the Bitcoin help page.

mocacinno

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I googled for a port forewarding tutorial for luci (which i can deduct from your screenshot)

https://www.cfos.de/en-us/cfos-personal-net/port-forwarding/openwrt.htm

the machine running your node will need to have a fixed ip.

For the rest, it might be a good thing to read this:
https://bitcoin.org/en/full-node

mocacinno

legendary

Activity: 3584

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Quote from: erictan90 on February 16, 2022, 04:06:14 AM

yup, 0 inbound connection.

The thing is: if you only want to use bitcoin core as a wallet, you don't actually NEED inbound connections... You made outbound connections, so you can download blocks and transactions. You only need inbound connections if you want your bitcoin core to run as a full node to support the network.

I assume you're working on a pc in your lan? In that case, it's probably upnp, firewall, port forewarding,... related.

erictan90

newbie

Activity: 22

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yup, 0 inbound connection. yes, I want to run full node to support the Bitcoin network.

mocacinno

legendary

Activity: 3584

Merit: 5243

https://merel.mobi => buy facemasks with BTC/LTC

Quote from: ?? on ??

Check the link, it shows:

Quote

That page doesn't exist

I do see the screenshot.... 10 outbound connections, 0 inbound... looks ok to me.

Is this a wallet, or do you want to run a full node 24/7?

erictan90

newbie

Activity: 22

Merit: 7

Hi,

Please refer to image link above, is that mean I have 0 Inbound connection?

I noticed that I need Inbound connection to support Bitcoin Network.

Please help.

Topic: Bitcoin Core Inbound connection - page 2. (Read 581 times)