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Bug
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Resolution: Done
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Highest
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None
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None
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None
If two vpp instances send a DHCP request almost at the same time they very often end up with the same IP. Despite the fact, that one of them receives DHCP NAK and it should re-request the IP address.
DHCP server log:
Mar 21 05:21:09 localhost dhcpd[3691]: DHCPDISCOVER from 00:50:56:af:a0:a7 via ens224 Mar 21 05:21:10 localhost dhcpd[3691]: DHCPOFFER on 192.168.1.44 to 00:50:56:af:a0:a7 (GigabitEthernet1b/0/0) via ens224 Mar 21 05:21:10 localhost dhcpd[3691]: DHCPREQUEST for 192.168.1.44 (192.168.1.1) from 00:50:56:af:a0:a7 (GigabitEthernet1b/0/0) via ens224 Mar 21 05:21:10 localhost dhcpd[3691]: DHCPACK on 192.168.1.44 to 00:50:56:af:a0:a7 (GigabitEthernet1b/0/0) via ens224 Mar 21 05:22:45 localhost dhcpd[3691]: DHCPDISCOVER from 00:50:56:af:79:1c via ens224 Mar 21 05:22:45 localhost dhcpd[3691]: DHCPDISCOVER from 00:50:56:af:da:1b via ens224 Mar 21 05:22:46 localhost dhcpd[3691]: DHCPOFFER on 192.168.1.45 to 00:50:56:af:79:1c (GigabitEthernet1b/0/0) via ens224 Mar 21 05:22:46 localhost dhcpd[3691]: DHCPREQUEST for 192.168.1.45 (192.168.1.1) from 00:50:56:af:79:1c (GigabitEthernet1b/0/0) via ens224 Mar 21 05:22:46 localhost dhcpd[3691]: DHCPACK on 192.168.1.45 to 00:50:56:af:79:1c (GigabitEthernet1b/0/0) via ens224 Mar 21 05:22:46 localhost dhcpd[3691]: DHCPREQUEST for 192.168.1.45 (192.168.1.1) from 00:50:56:af:da:1b via ens224: lease 192.168.1.45 unavailable. Mar 21 05:22:46 localhost dhcpd[3691]: DHCPNAK on 192.168.1.45 to 00:50:56:af:da:1b via ens224 Mar 21 05:22:46 localhost dhcpd[3691]: DHCPOFFER on 192.168.1.46 to 00:50:56:af:da:1b (GigabitEthernet1b/0/0) via ens224
VPP1:
_______ _ _ _____ ___
__/ __/ _ \ (_)__ | | / / _ \/ _ \
_/ _// // / / / _ \ | |/ / ___/ ___/
/_/ /____(_)_/\___/ |___/_/ /_/ vpp# sh int addr
GigabitEthernet1b/0/0 (up):
192.168.1.45/24
local0 (dn):
loop0 (up):
l2 bridge bd_id 1 bvi shg 0
10.4.1.2/24
tapcli-0 (up):
10.3.2.1/24
vxlan_tunnel0 (up):
l2 bridge bd_id 1 shg 1
vpp# sh hardware-interfaces
Name Idx Link Hardware
GigabitEthernet1b/0/0 1 up GigabitEthernet1b/0/0
Ethernet address 00:50:56:af:79:1c
VMware VMXNET3
carrier up full duplex speed 10000 mtu 9216
rx queues 1, rx desc 1024, tx queues 1, tx desc 1024
cpu socket 0 tx frames ok 9
tx bytes ok 1439
rx frames ok 16
rx bytes ok 2184
extended stats:
rx good packets 16
tx good packets 9
rx good bytes 2184
tx good bytes 1439
rx q0packets 16
rx q0bytes 2184
tx q0packets 9
tx q0bytes 1439
local0 0 down local0
local
loop0 3 up loop0
Ethernet address 1a:2b:3c:4d:5e:02
tapcli-0 2 up tapcli-0
Ethernet address 01:23:45:67:89:42
vxlan_tunnel0 4 up vxlan_tunnel0
VXLAN
VPP2
_______ _ _ _____ ___
__/ __/ _ \ (_)__ | | / / _ \/ _ \
_/ _// // / / / _ \ | |/ / ___/ ___/
/_/ /____(_)_/\___/ |___/_/ /_/ vpp# sh int addr
GigabitEthernet1b/0/0 (up):
192.168.1.45/24
local0 (dn):
loop0 (up):
l2 bridge bd_id 1 bvi shg 0
10.4.1.3/24
tapcli-0 (up):
10.3.3.1/24
tapcli-1 (up):
10.2.1.2/32
vxlan_tunnel0 (up):
l2 bridge bd_id 1 shg 1
vpp# sh hardware
Name Idx Link Hardware
GigabitEthernet1b/0/0 1 up GigabitEthernet1b/0/0
Ethernet address 00:50:56:af:da:1b
VMware VMXNET3
carrier up full duplex speed 10000 mtu 9216
rx queues 1, rx desc 1024, tx queues 1, tx desc 1024
cpu socket 0 tx frames ok 68
tx bytes ok 6584
rx frames ok 26
rx bytes ok 2690
extended stats:
rx good packets 26
tx good packets 68
rx good bytes 2690
tx good bytes 6584
rx q0packets 26
rx q0bytes 2690
tx q0packets 68
tx q0bytes 6584
local0 0 down local0
local
loop0 3 up loop0
Ethernet address 1a:2b:3c:4d:5e:03
tapcli-0 2 up tapcli-0
Ethernet address 01:23:45:67:89:42
tapcli-1 5 up tapcli-1
Ethernet address 02:fe:fc:07:21:82
vxlan_tunnel0 4 up vxlan_tunnel0
