Hi Paul, If you know about the below two questions that I asked in my last reply, could you plz answer?
Regards. On Thu, 24 Dec 2020, 00:02 Vijay Kumar via lists.fd.io, <vjkumar2003= gmail....@lists.fd.io> wrote: > Hi Paul, > > Question 1 > By physical addresses you mean the routable public IPs that form the > tunnel src and tunnel dst addresses? > > In my use case there is a GRE traffic that is originating from 5G mobiles > and is received by the N3IWF (wifi gateway) as shown in the below topo. The > GRE traffic generated by UE is over IPSEC (the GRE pkts have ESP encap). In > the production, there can be several thousands of 5G UEs that generate > gre-over-ipsec traffic that will terminate on a single p2mp (multipoint) > GRE interface on the N3IWF gateway as shown below. > > Question 2 > Since GRE is always encapsulated in IPSEC tunnel, do we still need to need > to map the GRE tunnel addresses to physical addresses. I thought we would > not be need GRE physical addresses in our use-case as there is the IPSEC > that is always outermost hdr and would be used for routing > > > Topo > ================ > UE ------(gre-over-ipsec traffic)----------N3IWF > > On Wed, Dec 23, 2020 at 10:12 AM Paul Vinciguerra < > pvi...@vinciconsulting.com> wrote: > >> Hi Vijay, >> >> How are you planning to map the tunnel addresses to the >> physical addresses? >> >> On Tue, Dec 22, 2020 at 9:04 PM Vijay Kumar <vjkumar2...@gmail.com> >> wrote: >> >>> Hi Paul, >>> >>> Thanks for the information. >>> >>> Your script is talking about nhrp protocol. >>> Is NHRP protocol mandatory to support mGRE? >>> >>> >>> Regards >>> >>> On Wed, 23 Dec 2020, 01:24 Paul Vinciguerra, <pvi...@vinciconsulting.com> >>> wrote: >>> >>>> Hi Vijay. >>>> >>>> Does this help any? >>>> https://github.com/vpp-dev/vpp/blob/master/test/test_gre.py#L998 >>>> >>>> >>>> On Tue, Dec 22, 2020 at 12:47 PM Vijay Kumar <vjkumar2...@gmail.com> >>>> wrote: >>>> >>>>> Hi, >>>>> >>>>> Can someone help me understand if multipoint GRE (one gre interface >>>>> that can communicate with multiple peers) is supported in the fd.ip GRE >>>>> plugin? >>>>> >>>>> If yes, could you please share with me an example config for >>>>> multi-point GRE. In the fd.io wiki pages, I am only seeing *p2mp >>>>> *configuration >>>>> (point to multipoint) for IP-in-IP but not for GRE >>>>> >>>>> >>>>> Please share me an example config that I can use to test >>>>> >>>>> >>>>> Regards >>>>> >>>>> >>>>> >>>>> > > >
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