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* Check if media link state of interface is not down		* Check if media link state of interface is not down
*/		*/
if (ifp->if_link_state == LINK_STATE_DOWN) {		if (ifp->if_link_state == LINK_STATE_DOWN) {
icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_HOST, 0, 0);		icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_HOST, 0, 0);
goto consumed;		goto consumed;
}		}

/*		/*
		* Translate Layer 4 inbound checksum offloading flags to outbound
		*/
		if ((m->m_pkthdr.csum_flags & (CSUM_DATA_VALID \| CSUM_PSEUDO_HDR)) ==
		(CSUM_DATA_VALID \| CSUM_PSEUDO_HDR) &&
		m->m_pkthdr.csum_data == 0xffff) {
		/* L4 checksum was correct, but it's not present. */
		switch(ip->ip_p) {
		case IPPROTO_TCP:
		m->m_pkthdr.csum_flags \|= CSUM_TCP;
		break;
		case IPPROTO_UDP:
		m->m_pkthdr.csum_flags \|= CSUM_UDP;
		break;
		case IPPROTO_SCTP:
		m->m_pkthdr.csum_flags \|= CSUM_SCTP;
		break;
		default:
		/*
		* No checksum offloading support
		*/
		break;
		}
		}

		/*
* Check if packet fits MTU or if hardware will fragment for us		* Check if packet fits MTU or if hardware will fragment for us
*/		*/
if (ro.ro_rt->rt_mtu)		if (ro.ro_rt->rt_mtu)
mtu = min(ro.ro_rt->rt_mtu, ifp->if_mtu);		mtu = min(ro.ro_rt->rt_mtu, ifp->if_mtu);
else		else
mtu = ifp->if_mtu;		mtu = ifp->if_mtu;

if (ip_len <= mtu) {		if (ip_len <= mtu) {
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