Yes, IFACE1 has a route(static) to IFACE3 and ping succeeds. Ping fails to IFACE4 from IFACE1, Do I need NAT and does XDP have support ? On Thu, May 4, 2023 at 11:05 AM Shaw, Jeffrey B <jeffrey.b.shaw@xxxxxxxxx> wrote: > > On 5/4/2023 10:38 AM, team lnx wrote: > > Hello, > > > > I see a ping not working in below topology with xdp redirect > > > > > > IFACE1 <---------> IFACE2 IFACE3 <------------------> IFACE4 > > > > IFACE2 and IFACE3 are on same host machine > > > > IFACE1 and IFACE2 are on static ip > > IFACE3 and IFACE4 are on dynamic ip, IFACE4 runs dhcp server > > > > steps > > 1. assign static ip between IFACE1 and IFACE2 (ex: 172.168.2.x) > > 2. dynamic ip between IFACE3 and IFACE4 (ex: 192.168.2.x) > > 3. Run xdp redirect on IFACE2 and IFACE3 > > 4. start ping from IFACE1 to IFACE4 > > Does IFACE1 have a route to 192.168.2.x and is the next hop resolved? > You can use `tcpdump` on IFACE1 and IFACE4 to see what packets are sent > and received.
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