Do you see a response to the DHCP Discover packets?
What does the vpp packet tracer show?
Thanks... Dave
> On Mar 2, 2023, at 7:03 AM, Thakur, Anagha <anagha.tha...@siemens.com> wrote:
>
>
>
> Hello,
>
> I am testing DHCP client feature from VPP stack (v22.02) onto our system.
>
> My setup is: I run k8s cluster on x86 system in which I have a pod which uses
> VPP stack and it accesses physical NIC interface using DPDK and SR-IOV. There
> are two physical interfaces which we use in VPP, one of them is with static
> IP (eno2) and other one with as DHCP client (eno1).
>
> I expect this interface shall act as a DHCP Client and we run a DHCP server
> on the other end of the system. But unfortunately, the VPP does not send any
> DHCP REQUEST. It keeps sending DHCP DISCOVERY every interval. It receives a
> DHCP Offer.
> But VPP does not send further DHCP REQUEST to the DHCP server. I do not
> expect that it is a problem from lower layer and it should be an issue from
> VPP side. Please let me know if I need to enable any extra plugin other than
> the ones in the attached file.
> I attached pcap file recorded vpp trace of tx and rx.
>
>
> Our versions are currently as follows:
> -> DPDK 22.03
> -> VPP 22.02
> -> VPP library 22.02
>
> Version Information attached.
>
> plugins
> {
> path /opt /vpp/lib/vpp_plugins
> plugin default { disable }
> plugin dpdk_plugin.so { enable }
> plugin memif_plugin.so { enable }
> plugin ping_plugin.so { enable }
> plugin router_plugin.so { enable }
> plugin upffp_plugin.so { enable }
> plugin dhcp_plugin.so { enable }
> }
>
>
> Commands used:
> set intfc VPP-N6-0 state up
> set int mac address eno1 00:11:22:33:44:66
> set dhcp client intfc eno1
> sh dhcp client verbose
> [0] VPP-N6-0 state DHCP_DISCOVER installed 0 no address
> lease: lifetime:0 renewal-interval:0 expires:0.00 (now:2412.35)
> retry-count:346, next-xmt:2416.87
> broadcast adjacency:20
> sh log
> 2023/02/27 16:11:03:986 notice dhcp/client sm active session 0
> 2023/02/27 16:11:03:986 notice dhcp/client send: type:discover bcast:1
> [0] VPP-N6-0 state DHCP_DISCOVER installed 0 no address
> lease: lifetime:0 renewal-interval:0 expires:0.00 (now:255827.12)
> retry-count:439, next-xmt:255827.12
> broadcast adjacency:11
> 2023/02/27 16:11:08:986 notice dhcp/client sm active session 0
> 2023/02/27 16:11:08:986 notice dhcp/client send: type:discover bcast:1
> [0] VPP-N6-0 state DHCP_DISCOVER installed 0 no address
> lease: lifetime:0 renewal-interval:0 expires:0.00 (now:255832.12)
> retry-count:440, next-xmt:255832.12
> broadcast adjacency:11
> 2023/02/27 16:11:13:986 notice dhcp/client sm active session 0
> 2023/02/27 16:11:13:986 notice dhcp/client send: type:discover bcast:1
> [0] VPP-N6-0 state DHCP_DISCOVER installed 0 no address
> lease: lifetime:0 renewal-interval:0 expires:0.00
> (now:255837.12)
> retry-count:441, next-xmt:255837.12
> broadcast adjacency:11
> 2023/02/27 16:11:18:986 notice dhcp/client sm active session 0
> 2023/02/27 16:11:18:986 notice dhcp/client send: type:discover bcast:1
> [0] VPP-N6-0 state DHCP_DISCOVER installed 0 no address
> lease: lifetime:0 renewal-interval:0 expires:0.00 (now:255842.12)
> retry-count:442, next-xmt:255842.12
> broadcast adjacency:11
> show interface address
> eno2 (up):
> L3 172.31.254.17/29
> eno1 (up):
> host-vpp1out (up):
> L3 128.0.129.144/24
> local0 (dn):
> memif0/502 (up):
>
>
> Thank you in advance.
>
> Best Regards,
> Anagha
>
>
> <vpp_show_version.txt>
> <trace_tx_rx.pcap>
>
>
>
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