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WAN TFTP

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N8JJ
WAN TFTP
Is TFTP allowed (or blocked) through the WAN port?

I'm trying to download a phonebook to a phone using it's TFTP client thru a node from my local server via the WAN port.

I can connect http but tftp times out.

JJ
AE6XE
AE6XE's picture
By default only 'scp' is

[update:   read your question too fast, so this is an answer to a different question :)  -- answered the 'incoming' on the wan to the mesh network protocol question.]

By default only 'scp' is available to copy files over the WAN interface on port 2222 .

Joe AE6XE

KG6JEI
If I'm reading this correct

If I'm reading this correct and the phone book is on a TFTP server located on a server reachable via the the node WAN port  and the phone is on the node LAN port there should not be any block.

However a mesh node does masquerade(NAT) the connection and I don't know off hand if TFTP is one of those protocols that needs a helper to pass through NAT.

AE6XE
AE6XE's picture
Yea, there's "nf_conntrack

Yea, there's "nf_conntrack_tftp" to config.   UDP and a dynamic port on the server picked to push the data back to the client.

Need to find this package for Barrier Breaker:  https://wiki.openwrt.org/doc/devel/packages/kmod-ipt-nathelper to install...

There is an option under Admin "Download Package" for "kmod-ipt-nathelper-extra 3.10.49-1".   Will have to dig further to know if this is the right one and will do the trick.

N8JJ
Follow up
I think my best solution is to host a TFTP server on a Raspberry Pi directly on the mesh rather than trying to put it on my LAN and trying to solve the routing issues.
I also discovered that the GS3240 would register to an internet VOIP provider.  That is, with the phone on the mesh.  I enabled the STUN option on the phone and was able to complete a VOIP call over the internet (at least to their test number).  I will post some more in the VOIP forum group.

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