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Viewing GRE Tunnels

  1. Select Network > Elements > Tunnels... in View or Design mode.

  2. To filter for all GRE tunnels, click the Filter icon and type GRE in the Type field. (Alternatively, filter on “Type=GRE” in the Advanced Filter).

    Figure 1: Filtered GRE TunnelsNetwork management interface showing tunnels: Tunnel1 from ATL to BOS, Tunnel2 from BOS to ATL. Both have IP_Z, Bandwidth 0, Type R,GRE,SOURCE, Priority 07, Preemption 07, and Path status.

  3. Select the GRE tunnel to view and then click Show Path to view its path.

    Figure 2: GRE Tunnel routed over LSP TunnelNetwork topology map showing nodes like ATL, BOS, NYC connected by links. Color-coded scale indicates link utilization levels. Paths table lists path names, interfaces, IP addresses, and tunnel types.

  4. Note that a tunnel itself can route over a tunnel (in this case, an LSP tunnel). The portion that travels over another tunnel is colored in purple.