interfaces tunnel <tunx> parameters ipv6 hoplimit <hoplimit>
Sets the hop-limit value to write into the IPv6 header of a tunnel packet.
The default hop limit is 64.
- tunx
- The identifier of a tunnel interface. The identifier ranges from tun0 through tunx, where x is a nonnegative integer.
- 0-255
- The value to write into the hop-limit field in the IPv6 header of a tunnel packet (the carrier packet). The value ranges from 0 through 255, where 0 means a tunnel packet copies the value from the packet being encapsulated (the passenger packet).
Configuration mode
interfaces {
tunnel tunx {
parameters {
ipv6 {
hoplimit 0-255
}
}
}
}
The hop-limit byte of the encapsulated packet is copied into the hop-limit byte of the IPv6 header of a tunnel packet.
Use this command to set the value to write into the hop-limit field of the IPv6 header for a packet that traverses a tunnel interface. The hop-limit field of the IPv6 heder of a packet limits the lifetime of an IPv6 packet and prevents indefinite packet looping.
Use the set form of this command to set the hop-limit value to write into the IPv6 header of a tunnel packet.
Use the delete form of this command to restore the default behavior for the hoplimit field, that is, the hop-limit byte of the encapsulated packet is copied into the IPv6 header of the tunnel packet.
Use the show form of this command to display the current hop-limit value to write into the IPv6 header of a tunnel packet.