Questions & Answers

ICMP Blocked by ISP

Started by yozh

Replies: 1
Views: 35,261

January 06, 2022, 11:24:13 AM
by broquea

Tunnelbroker.net API Documentation

Started by kcochran

Replies: 6
Views: 98,815

April 12, 2017, 12:21:35 PM
by snarked

Q&A Guidelines

Started by samh

Replies: 0
Views: 82,038

February 07, 2008, 05:03:19 PM
by samh

Need help with SMTP unblock

Started by mitkait

Replies: 0
Views: 297

July 14, 2026, 06:49:35 PM
by mitkait

The IP address under AS4134 displays "This network is restricted"

Started by HerobrineWhite

Replies: 1
Views: 419

July 02, 2026, 02:11:23 AM
by agehall

/48 ?

Started by pronetla

Replies: 0
Views: 212

June 09, 2026, 11:07:51 AM
by pronetla

Japan tunnel server with high latency in recent days

Started by 98118

Replies: 1
Views: 237

May 31, 2026, 12:55:47 PM
by snarked

Maximum /48 alocation

Started by leandroneves

Replies: 0
Views: 3,443

May 04, 2026, 09:43:47 AM
by leandroneves

SMTP in Tunnnel

Started by Agouros

Replies: 1
Views: 5,761

May 02, 2026, 07:53:39 PM
by evantkh

Tunnel auto deletion / expiry rules

Started by paver

Replies: 2
Views: 7,108

April 16, 2026, 09:47:27 AM
by kcochran

IPv6 tunnel and GeoIP

Started by jelockwood

Replies: 12
Views: 50,879

April 15, 2026, 06:59:24 AM
by supergvozd

rwhois.he.net:4321 is down; could this be the cause for wrong geoip?

Started by idealneck

Replies: 3
Views: 22,437

January 29, 2026, 10:25:32 AM
by idealneck

Move tunnel to another computer

Started by Parodper

Replies: 3
Views: 12,356

January 16, 2026, 07:32:25 AM
by evantkh

Azure filtering IPv6 requests?

Started by humeipv6

Replies: 2
Views: 14,000

January 05, 2026, 10:08:13 AM
by jon47

Ongoing Support for IPv6 Tunnel with Outgoing SMTP

Started by evantkh

Replies: 0
Views: 9,237

December 29, 2025, 05:41:31 AM
by evantkh

Are 6in4/SIT tunnels always 1 to 1?

Started by helpdeskaleer

Replies: 1
Views: 12,608

December 05, 2025, 02:08:14 PM
by kcochran

Do 6in4/SIT Tunnels run on a specific port?

Started by helpdeskaleer

Replies: 1
Views: 10,469

December 05, 2025, 01:57:51 PM
by kcochran

Moved to AT&T Fiber, tunnel broken

Started by BiloxiGeek

Replies: 4
Views: 55,717

November 24, 2025, 03:24:36 PM
by broquea

Changing tunnel servers

Started by cshilton

Replies: 2
Views: 13,895

November 08, 2025, 11:11:05 AM
by adayton01

Seattle Packet Loss

Started by ertyu

Replies: 0
Views: 11,009

November 01, 2025, 11:24:10 AM
by ertyu