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merged 2 commits into from
Jan 9, 2025
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Update cloudflare-gateway.mdx #18986

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Update cloudflare-gateway.mdx
ricardomacas Jan 2, 2025
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Update src/content/docs/magic-wan/zero-trust/cloudflare-gateway.mdx
marciocloudflare Jan 9, 2025
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7 changes: 6 additions & 1 deletion src/content/docs/magic-wan/zero-trust/cloudflare-gateway.mdx
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Expand Up @@ -47,7 +47,12 @@ This traffic will egress from Cloudflare according to the [egress policies](/clo

By default, TCP, UDP, and ICMP traffic routed through Magic WAN tunnels and destined to routes behind [Cloudflare Tunnel](/cloudflare-one/connections/connect-networks/) will be proxied/filtered through Cloudflare Gateway.

Contact your account team to enable Gateway filtering for traffic destined to routes behind Magic WAN tunnels. If enabled, by default, TCP and UDP traffic sourced from and destined to [RFC1918](https://datatracker.ietf.org/doc/html/rfc1918) space, [WARP](/cloudflare-one/connections/connect-devices/warp/), or [BYO](/byoip/) or [Leased IPs](/magic-transit/cloudflare-ips/) with source port higher than `1023` and destination port lower than `1024` will be proxied/filtered by Cloudflare Gateway.
Contact your account team to enable Gateway filtering for traffic destined to routes behind Magic WAN tunnels.

If enabled, by default TCP/UDP traffic meeting **all** the following criteria will be proxied/filtered by Cloudflare Gateway:
- Both source and destination IPs are part of either [RFC1918](https://datatracker.ietf.org/doc/html/rfc1918) space, [WARP](/cloudflare-one/connections/connect-devices/warp/), [BYO](/byoip/) or [Leased IPs](/magic-transit/cloudflare-ips/)
- Source port must be a client port strictly higher than `1023`
- Destination port is a well-known port lower than `1024`

Optionally, more specific matches may be specified to override the default:

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