I do see DHCP Offer in the packet tracer from the Server which I have set up on
the other side.
But VPP does not send any DHCP Request out, instead I always see that VPP
continuously keeps sending DHCP Discovery.
I have attached tx and rx pcap trace in my prevous email.
Best Regards,
Anagha
________________________________
From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> on behalf of Dave Barach via
lists.fd.io <vpp=barachs....@lists.fd.io>
Sent: Thursday, 2 March 2023, 19:15
To: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io>
Subject: Re: [vpp-dev] FW: Bug: DHCP Client not sending DHCP REQUEST using VPP
v22.02
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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