ip-tunnel

ip-tunnel — IP Tunneling Settings

Properties

Table 63. 

Key Name Value Type Default Value Value Description
encapsulation-limit
uint32
0
How many additional levels of encapsulation are permitted to be prepended to packets. This property applies only to IPv6 tunnels.
flags
uint32
0
Tunnel flags. Currently, the following values are supported: NM_IP_TUNNEL_FLAG_IP6_IGN_ENCAP_LIMIT (0x1), NM_IP_TUNNEL_FLAG_IP6_USE_ORIG_TCLASS (0x2), NM_IP_TUNNEL_FLAG_IP6_USE_ORIG_FLOWLABEL (0x4), NM_IP_TUNNEL_FLAG_IP6_MIP6_DEV (0x8), NM_IP_TUNNEL_FLAG_IP6_RCV_DSCP_COPY (0x10), NM_IP_TUNNEL_FLAG_IP6_USE_ORIG_FWMARK (0x20). They are valid only for IPv6 tunnels.
flow-label
uint32
0
The flow label to assign to tunnel packets. This property applies only to IPv6 tunnels.
input-key
string
The key used for tunnel input packets; the property is valid only for certain tunnel modes (GRE, IP6GRE). If empty, no key is used.
local
string
The local endpoint of the tunnel; the value can be empty, otherwise it must contain an IPv4 or IPv6 address.
mode
uint32
0
The tunneling mode, for example NM_IP_TUNNEL_MODE_IPIP (1) or NM_IP_TUNNEL_MODE_GRE (2).
mtu
uint32
0
If non-zero, only transmit packets of the specified size or smaller, breaking larger packets up into multiple fragments.
output-key
string
The key used for tunnel output packets; the property is valid only for certain tunnel modes (GRE, IP6GRE). If empty, no key is used.
parent
string
If given, specifies the parent interface name or parent connection UUID the new device will be bound to so that tunneled packets will only be routed via that interface.
path-mtu-discovery
boolean
TRUE
Whether to enable Path MTU Discovery on this tunnel.
remote
string
The remote endpoint of the tunnel; the value must contain an IPv4 or IPv6 address.
tos
uint32
0
The type of service (IPv4) or traffic class (IPv6) field to be set on tunneled packets.
ttl
uint32
0
The TTL to assign to tunneled packets. 0 is a special value meaning that packets inherit the TTL value.