RTM Networks
Network Infrastructure

GRE Tunneling Solutions

Route your IPv4 address space through dedicated GRE tunnels with full BGP support. Connect leased or owned IPs to any infrastructure worldwide.

Tunnel Features

Low Latency

Optimized tunnel endpoints in major data center hubs across Europe, US, and Asia for minimal latency overhead.

Global Endpoints

Choose tunnel endpoints in 20+ locations. Route your leased or owned IPs through the nearest point of presence.

Encrypted Options

Standard GRE or GRE over IPsec for encrypted tunnels. Protect your traffic with industry-standard encryption.

BGP Support

Full BGP session support over GRE tunnels. Announce your own prefixes with custom AS path configurations.

Custom Configuration

Tailored MTU settings, keepalive timers, and routing policies. We configure everything to your specifications.

Redundant Tunnels

Set up primary and failover tunnels for high availability. Automatic failover with sub-second convergence.

Technical Specifications

Our GRE tunnel infrastructure is built on enterprise-grade hardware with redundant uplinks and 99.9% SLA.

ProtocolGRE (RFC 2784) / GRE over IPsec
BGPFull BGP4 with MD5 authentication
BandwidthUp to 10 Gbps per tunnel
MTUConfigurable, default 1476
Uptime SLA99.9% guaranteed
Monitoring24/7 with automated alerts
tunnel-config-example.txt
# GRE Tunnel Configuration Example
interface Tunnel0
  ip address 10.0.0.2 255.255.255.252
  tunnel source 203.0.113.1
  tunnel destination 198.51.100.1
  tunnel mode gre ip
  ip mtu 1476

# BGP Configuration
router bgp 64512
  neighbor 10.0.0.1 remote-as 65001
  address-family ipv4 unicast
    network 192.0.2.0 mask 255.255.255.0
    neighbor 10.0.0.1 activate

Common Use Cases

Host Servers Without ISP IPs

Run servers from your office or on-premise location using your own IPv4 space via GRE tunnel, without depending on your ISP's address allocation.

Bypass Port 25 Restrictions

Most residential and business ISPs block outbound port 25. Route your mail traffic through a GRE tunnel to send email from your own IPv4 addresses.

BYOIP to Cloud Providers

Use GRE tunnels to route your own IPv4 space through cloud platforms like AWS, GCP, and Azure that support Bring Your Own IP.

Remote Data Center Connectivity

Connect leased IPv4 blocks to your infrastructure in remote data centers without requiring direct peering or transit.

Ready to Secure Your IPv4 Addresses?

Whether you need to lease, buy, or sell IPv4 space, our team of experts is ready to help. Get a custom quote within 24 hours.