The tunnel ipv4-ipv6 hop-limit command sets the hop limit.
The undo tunnel ipv4-ipv6 hop-limit command restores the hop limit to the default value.
By default, the hop limit is set to 64.
| Parameter | Description | Value |
|---|---|---|
| hop-limit | Specifies the hop limit. | The value is an integer ranging from 1 to 255. |
Setting the tunnel hop limit can rapidly terminate the packet transmission when the routing loops occur on the IPv6 tunnel. To make IPv6 tunnel packets reach the egress of the tunnel, the tunnel hop limit cannot be too small.
Before running the tunnel ipv4-ipv6 hop-limit command in the tunnel interface view, you need to run the tunnel-protocol ipv4-ipv6 command in the tunnel interface view to configure the tunnel mode as the IPv4 over IPv6 manual tunnel mode.