/interface/6to4
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6to4
6to4 is a special mechanism that allows IPv6 packets to be transmitted over IPv4 networks.
interface/6to4
Type: Directory
6to4 is a special mechanism that allows IPv6 packets to be transmitted over IPv4 networks.
| Flag | Name | Description |
|---|---|---|
X | disabled | Whether an item is disabled. |
R | running | Whether the interface is running. |
| Argument | Type | Description |
|---|---|---|
name | string | Interface name. |
mtu | num | Layer3 maximum transmission unit. |
local-address | ipAddr | Source address of the packets, local to the router. |
remote-address | alt { address: ipAddr , name: string } | IP address of the remote end of the 6to4 tunnel. If left unspecified, the IPv4 address is derived from the 2002::/16 gateway address. |
keepalive | super { keepalive-interval: time [1 .. ] , [keepalive-retries] [ ,num [1 .. ]] } | The keepalive parameter sets the time interval in which the tunnel running flag remains even if the remote end of the tunnel goes down. If the configured time and retries fail, the interface running flag is removed. Parameters are written in the following format: KeepaliveInterval,KeepaliveRetries where KeepaliveInterval is the time interval and KeepaliveRetries is the number of retry attempts. By default keepalive is set to 10 seconds and 10 retries. |
dscp | num | DSCP value of the packet. Inherited means the DSCP value is inherited from the packet to be encapsulated. |
clamp-tcp-mss | bool | Controls whether to change MSS size for received TCP SYN packets. When enabled, the router changes the MSS size for received TCP SYN packets if the current MSS size exceeds the tunnel interface MTU (taking into account the TCP/IP overhead). The received encapsulated packet still contains the original MSS, and only after decapsulation the MSS is changed. |
dont-fragment | enum (no | inherit) | Whether to include the DF bit in related packets. - no - fragment if needed. - inherit - use the DF flag of the original packet. |
ipsec-secret | string | When a secret is specified, the router adds a dynamic IPsec peer to remote-address with a pre-shared key and policy (by default phase2 uses sha1/aes128cbc). |
| Read-only Argument | Type | Description |
|---|---|---|
actual-mtu | num | Actual maximum transmission unit of the tunnel. |
current-remote-address | ipAddr | Current IPv4 address of the remote end. |