taglinefilesource code
RTF_MODIFIED455net/ipv4/icmp.cip_rt_add((RTF_DYNAMIC | RTF_MODIFIED | RTF_GATEWAY),
RTF_MODIFIED476net/ipv4/icmp.cip_rt_add((RTF_DYNAMIC | RTF_MODIFIED | RTF_HOST | RTF_GATEWAY),
RTF_MODIFIED1190net/ipv4/ip.cif (dev == dev2 && !((iph->saddr^iph->daddr)&dev->pa_mask) && (rt->rt_flags&RTF_MODIFIED))