Cisco Nexus 9000 Series Configuration Manual page 159

DHCP Relay in VXLAN BGP EVPN
• 9372-1
9372—1# sh run dhcp
!Command: show running—config dhcp
!Time: Mon Aug 24 08:26:00 2015
version 7.0(3) Ii (3)
feature dhcp
service dhcp
ip dhcp relay
ip dhcp relay information option
ip dhcp relay information option vpn
ipv6 dhcp relay
interface VlanlOOl
• 9372-2
!Command: show running-config dhcp
!Time: Mon Aug 24 08:26:16 2015
version 7.0(3)11(3)
feature dhcp
service dhcp
ip dhcp relay
ip dhcp relay information option
ip dhcp relay information option vpn
ipv6 dhcp relay
interface VlaniOOl
Debug Output
• The following is a packet dump for DHCP interact sequences.
9372-1# ethanalyzer local interface inband display-filter "udp.srcport==67 or
udp.dstport==67" limit-captured-frames 0
Capturing on inband
20150825 08:59:35.758314 0.0.0.0 -> 255.255.255.255 DHCP DHCP Discover - Transaction
ID 0x3eebccae
20150825 08:59:35.758878 33.33.33.33 -> 192.1.42.3 DHCP DHCP Discover - Transaction ID
0x3eebccae
20150825 08:59:37.759560 192.1.42.3 -> 33.33.33.33 DHCP DHCP Offer - Transaction ID
0x3eebccae
20150825 08:59:37.759905 172.16.16.1 -> 172.16.16.11 DHCP DHCP Offer - Transaction ID
0x3eebccae
20150825 08:59:37.760313 0.0.0.0 -> 255.255.255.255 DHCP DHCP Request - Transaction ID
0x3eebccae
20150825 08:59:37.760733 33.33.33.33 -> 192.1.42.3 DHCP DHCP Request - Transaction ID
0x3eebccae
20150825 08:59:37.761297 192.1.42.3 -> 33.33.33.33 DHCP DHCP ACK - Transaction ID
0x3eebccae
20150825 08:59:37.761554 172.16.16.1 -> 172.16.16.11 DHCP DHCP ACK - Transaction ID
0x3eebccae
ip dhcp relay address 192.1.42.3 use—vrf vxlan—900002
ip dhcp relay source—interface loopback2
ip dhcp relay address 192.1.42.3 use-vrf vxlan—900002
ip dhcp relay source—interface loopback2
Cisco Nexus 9000 Series NX-OS VXLAN Configuration Guide, Release 7.x
DHCP Relay on VTEPs
147