On Fri, 2016-07-08 at 18:17 +0400, Loganaden Velvindron wrote: > On Fri, Jul 8, 2016 at 6:14 PM, Eric Dumazet <eric.duma...@gmail.com> wrote: > > On Fri, 2016-07-08 at 15:51 +0200, Toralf Förster wrote: > >> I do run a 4.6.3 hardened Gentoo kernel at a commodity i7 server. A > >> DDoS with about 300 MBit/sec over 5 mins resulted an issue for ipv6 at > >> that system. > >> > >> The IPv6 monitoring from my ISP told my that the to be monitored > >> services (80, 443, 52222) weren't reachable any longer at ipv6 (at > >> ipv4 there was no issue). Restarting the NIC brought back green lights > >> for the services at the ipv6 ports too. > > > > Hard to tell without knowing DDOS details, but IPv6 lacks some > > scalability improvements found in IPv4. > > > > IPv4 no longer has a routing cache, but IPv6 still has one. > > > > Any pointers as to which part of the kernel to look for to implement > one for IPv6 ?
net/ipv6/route.c and net/ipv4/route.c ?
