Function send_ip_frame 

pub fn send_ip_frame<BC, CC, I, S>(
    core_ctx: &mut CC,
    bindings_ctx: &mut BC,
    device_id: &CC::DeviceId,
    destination: IpPacketDestination<I, &DeviceId<BC>>,
    body: S,
    meta: BC::TxMetadata,
) -> Result<(), SendFrameError<S>>
where
    BC: EthernetIpLinkDeviceBindingsContext + LinkResolutionContext<EthernetLinkDevice>,
    CC: EthernetIpLinkDeviceDynamicStateContext<BC> + NudHandler<I, EthernetLinkDevice, BC> + TransmitQueueHandler<EthernetLinkDevice, BC, Meta = BC::TxMetadata> + ResourceCounterContext<CC::DeviceId, DeviceCounters>,
    I: EthernetIpExt + BroadcastIpExt,
    S: Serializer,
    S::Buffer: BufferMut,

Send an IP packet in an Ethernet frame.

send_ip_frame accepts a device ID, a local IP address, and a serializer. It computes the routing information, serializes the serializer, and sends the resulting buffer in a new Ethernet frame.