> On Feb 28, 2021, at 8:58 PM, hemant via lists.fd.io > <hemant=mnkcg....@lists.fd.io> wrote: > > Hi Chris, > > I do have VPP and trex directly connected. Port 0 on trex sends packets to > VPP TenGig3/0/0 and VPP needs to switch the ingress packet to TenGig3/0/1 and > back to trex’s Port 1. I am using stateless trex. > > I did use MAC addresses in trex_cfg.yaml, but not “version : 2”. I have also > tried a pccp file in but didn’t work. The trex packet has reached VPP but > VPP fails to switch the packet arriving on TenGig3/0/0 to TenGig3/0/1. I do > have static IPv6 neighbor configured on VPP to avoid VPP sending an NS. > However, VPP is still sending an NS to which trex does reply. Soon as I use > service mode on trex and scan6, packets arrive at trex. But service mode > can’t be used to test traffic. > > I am using latest VPP downloaded from gerrit today and also using a latest > trex (2.88) downloaded from github. I know VPP CSIT runs IPv6 tests and > CSIT uses trex. It would e good to know what does CSIT use. > > This is how I setup IPv6 on VPP using a script. > > enable ip6 interface TenGigabitEthernet3/0/0 > enable ip6 interface TenGigabitEthernet3/0/1 > set int ip addr TenGigabitEthernet3/0/0 2001:420:380:dead:beef:d06:f001:1/128 > set int ip addr TenGigabitEthernet3/0/1 2001:420:380:dead:beef:d06:f002:1/128 > set int state TenGigabitEthernet3/0/0 up > set int state TenGigabitEthernet3/0/1 up > ip6 nd TenGigabitEthernet3/0/0 ra-suppress > ip6 nd TenGigabitEthernet3/0/1 ra-suppress > set ip neighbor TenGigabitEthernet3/0/0 2001:420:380:dead:beef:d06:f001:2 > 00:25:90:eb:e8:ec > set ip neighbor TenGigabitEthernet3/0/1 2001:420:380:dead:beef:d06:f002:2 > 00:25:90:eb:e8:ed > ip route add 2001:420:380:dead:beef:d06:f001:2/128 via > 2001:420:380:dead:beef:d06:f001:1 TenGigabitEthernet3/0/0 > ip route add 2001:420:380:dead:beef:d06:f002:2/128 via > 2001:420:380:dead:beef:d06:f002:1 TenGigabitEthernet3/0/1
I believe your "via" is wrong. It should point to trex not your local IP. Try: ip route add 2001:420:380:dead:beef:d06:f001:2/128 via TenGigabitEthernet3/0/0 Although I'd maybe try a non-"p2p" style configuration using /64 shared prefixes for each interface. Also, I think your going to need routes that match the actual traffic your generating from trex. Thanks, Chris. > clear run > > thanks, > > Hemant > > From: vpp-dev@lists.fd.io <mailto:vpp-dev@lists.fd.io> <vpp-dev@lists.fd.io > <mailto:vpp-dev@lists.fd.io>> On Behalf Of Christian Hopps > Sent: Sunday, February 28, 2021 7:52 PM > To: hem...@mnkcg.com <mailto:hem...@mnkcg.com> > Cc: Christian Hopps <cho...@chopps.org <mailto:cho...@chopps.org>>; > vpp-dev@lists.fd.io <mailto:vpp-dev@lists.fd.io> > Subject: Re: [vpp-dev] trex and vpp ipv6? > > I've got this to work. Try using MAC addresses instead of IP in your > trex_cfg.yaml > > - port_limit : 2 > version : 2 > low_end : false > interfaces : ["3b:00.0", "3b:00.1"] > port_info : > - src_mac : b8:59:9f:xx:xx:xx > dest_mac : b8:59:9f:yy:yy:yy > - src_mac : b8:59:9f:xx:xx:xx > dest_mac : b8:59:9f:yy:yy:yy > > (replace xx and yy) > > I use python client code that constructs IPv6 packets using scapy, there's > some other trick for using IPv4 pcap files if that's what you use, google > will help there. I also use static ipv6 neighbors in VPP to point back to > trex, but I don't know if that's needed. > > Thanks, > Chris. > > > On Feb 27, 2021, at 8:52 PM, hemant via lists.fd.io <http://lists.fd.io/> > <hemant=mnkcg....@lists.fd.io <mailto:hemant=mnkcg....@lists.fd.io>> wrote: > > Folks, > > If anyone could get ipv6 traffic testing work between a VPP node and trex, > could you please how you made trex work? I have tried a few things including > setting up static neighbors on the vpp node and trex does not show any mac > unresolved or any other issue. But trex is unable to send any packets to the > VPP node. > > I could make trex work with IPv4 and the VPP node using “ip” and default_gw” > in trex yaml file. > > Thanks, > > Hemant > > > > > >
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