NoCGNAT.caCanadian ISP self-hosting finder

Provider profile · 2 services

Self-hosting on Videotron: CGNAT, IPv6 & blocked ports

What public sources say about running a home server, VPN or remote access on Videotron. We only list values we could source. Anything blank is unknown, not a "no".

Service

Residential

Region: QC source

CGNAT by defaultUnknownNative IPv6Helix equipment onlyPort 25Reported blockedPort 80Reported blockedPort 443UnknownStatic IPv4Unknown
WhatWhat the source saysSource
Inbound ports blockedResidential: 80, 23, 25, 110, 1194 reported blocked (user answer)

Inbound blocks stop people on the internet from reaching a service on that port at your home, even if you forward it.

ISP community forum
Checked 2026-10-15
Terms of service on serversResidential access may not be used to offer services to others (no servers)ISP community forum
Checked 2026-10-15
Native IPv6Yes on Helix equipment only; 6RD for non-Helix disabled

With native IPv6, each device can get a globally routable address, which is one way to reach a home server even when IPv4 is behind CGNAT (if the remote side also has IPv6).

ISP official page
Checked 2026-10-15
Top upload speed (Mbps)2500 (2.5 GIGA symmetrical); GIGA 50 up; 2 GIGA 200 up; 500 Mbps plan 50 upISP official page
Checked 2026-10-15
Symmetrical speeds?Only on 2.5 GIGAISP official page
Checked 2026-10-15
Bridge / passthrough modeBridge Mode on Helix Fi gateway (not with Ethernet-fed optical unit installs); limited support

Bridge or passthrough mode lets your own router take the public IP so you control the firewall and port forwards.

ISP official page
Checked 2026-10-15
Where it's availableQC (official service-area page lists Quebec municipalities)ISP official page
Checked 2026-10-15

Unknown – help us verify: Network owner or reseller, Underlying network, Access technology, Behind CGNAT by default?, Public IPv4 (may change), Public IPv4 cost (CAD), Static IPv4 on residential plans, Static IPv4 cost (CAD), IPv6 prefix size, Outbound ports blocked, How to get port 25 opened, Use your own router?. Submit a reading.

Service

Business dynamic IP

CGNAT by defaultUnknownNative IPv6UnknownPort 25BlockedPort 80Blocked inboundPort 443UnknownStatic IPv4Unknown
WhatWhat the source saysSource
Inbound ports blocked25, 80, 35, 137-139, 161-162, 445, 1080 (moderator, 2020)

Inbound blocks stop people on the internet from reaching a service on that port at your home, even if you forward it.

ISP forum moderator
Checked 2026-10-15
Outbound ports blocked25 (except videotron.ca SMTP), 135, 139, 445, 4444 (moderator, 2020)

Outbound blocks stop your home network from connecting out on that port. Outbound port 25 blocks mean a home mail server cannot deliver mail directly.

ISP forum moderator
Checked 2026-10-15
Static IPv4 on residential plansPorts open only for Static IP customers (claim in thread)

A static IP never changes. A public dynamic IP plus dynamic DNS is enough for most home servers; a static IP matters for mail servers and allow-lists.

ISP community forum
Checked 2026-10-15

Unknown – help us verify: Network owner or reseller, Underlying network, Where it's available, Access technology, Behind CGNAT by default?, Public IPv4 (may change), Public IPv4 cost (CAD), Static IPv4 cost (CAD), Native IPv6, IPv6 prefix size, How to get port 25 opened, Bridge / passthrough mode, Use your own router?, Top upload speed (Mbps), Symmetrical speeds?, Terms of service on servers. Submit a reading.

Check your own line

Check your own Videotron connection

Policies can differ by area, plan and equipment. Run the self-host check or the 2-minute CGNAT guide, then tell us what you found.

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