Solved: Re: DHCP Relay between Cisco Router and Aruba Switch is not working - Page 2

mudvayne15 · ‎02-18-2022

Hi Everyone,

Can someone help me verify my configuration? I did try to play around with the DHCP relay option in Aruba but I am still not getting any DHCP on the clients.

We just replaced our HP procurve with Aruba, the old settings for the DHCP relay is as follow.

dhcp-relay option 82 append ip

After the migration, we cannot get any DHCP.

My router configuration below

ip dhcp pool cc-data
   network 10.86.13.0 255.255.255.0
   domain-name domain.net
   default-router 10.86.13.254
   dns-server 10.86.9.3 10.86.9.4 10.65.20.3
   lease 0 8
   class cc-data
      address range 10.86.13.32 10.86.13.223
!
ip dhcp pool wireless
   network 10.86.12.0 255.255.255.0
   domain-name domain.net
   default-router 10.86.12.254
   dns-server 10.86.9.3 10.86.9.4 10.65.20.3
   lease 0 8
   class wireless
      address range 10.86.12.32 10.86.12.223
!
ip dhcp pool voice
   network 10.86.20.0 255.255.255.0
   domain-name domain.net
   default-router 10.86.20.254
   dns-server 10.86.9.3 10.86.9.4 10.65.20.3
   lease 0 8
   class voice
      address range 10.86.20.32 10.86.20.223
!
ip dhcp pool ops-data
   network 10.86.14.0 255.255.255.0
   domain-name domain.net
   default-router 10.86.14.254
   dns-server 10.86.9.3 10.86.9.4 10.65.20.3
   lease 0 8
   class ops-data
      address range 10.86.14.32 10.86.14.223
!
ip dhcp pool wireless-guest
   network 10.86.15.0 255.255.255.0
   domain-name domain.net
   default-router 10.86.15.254
   dns-server 10.86.9.3 10.86.9.4 10.65.20.3
   lease 0 8
   class wireless-guest
      address range 10.86.15.32 10.86.15.223
!
!
ip dhcp class cc-data
   relay agent information
      relay-information hex 0000000000000a560dfe mask ffffffffffff00000000
!
ip dhcp class wireless
   relay agent information
      relay-information hex 0000000000000a560cfe mask ffffffffffff00000000
!
ip dhcp class voice
   relay agent information
      relay-information hex 0000000000000a5614fe mask ffffffffffff00000000
!
ip dhcp class ops-data
   relay agent information
      relay-information hex 0000000000000a560efe mask ffffffffffff00000000
!
ip dhcp class wireless-guest
   relay agent information
      relay-information hex 0000000000000a560bfe mask ffffffffffff00000000
!
!
!
spanning-tree uplinkfast

ip scp server enable
!
!
interface FastEthernet0/1
 ip address 10.86.11.2 255.255.255.0
 ip route-cache flow
 ip policy route-map pbr-mpls
 duplex auto
 speed auto
!

My switch config below

module 1 type jl322a
mirror 1 port 8
console idle-timeout 180
console idle-timeout serial-usb 180
dhcp-relay option 82 replace ip
dhcp-relay option 82 replace validate
logging 10.86.9.12
radius-server host 10.65.0.235 key "Pv5T4u1G"
no telnet-server
ip route 0.0.0.0 0.0.0.0 10.86.11.1
ip route 10.0.0.0 255.0.0.0 10.86.11.29
ip route 10.86.17.0 255.255.255.0 10.86.16.1
ip route 172.0.0.0 255.0.0.0 10.86.11.29
ip route 192.168.0.0 255.255.0.0 10.86.11.29
ip routing
interface 10
H   name "Ruckus ZD 1100"
   exit
interface 17
   monitor all both mirror 1
   exit
interface 18
   monitor all both mirror 1
   exit
interface 19
   monitor all both mirror 1
   exit
interface 20
   monitor all both mirror 1
   exit
interface 21
   monitor all both mirror 1
   exit
interface 22
   monitor all both mirror 1
   exit
interface 23
   monitor all both mirror 1
   exit
Hinterface 24
   monitor all both mirror 1
   exit
snmp-server community "public" unrestricted
aaa authentication login privilege-mode
aaa authentication telnet login radius local
aaa authentication ssh login radius local
oobm
   ip address dhcp-bootp
   ipv6 enable
   ipv6 address dhcp full
   exit
vlan 1
   name "MANAGEMENT"
   no untagged 3-4,7-9,11-12,16,23
   untagged 1-2,5-6,10,13-15,17-22,24-48
   ip address 10.86.11.254 255.255.255.0
   ipv6 enable
   ipv6 address dhcp full
   exit
vlan 90
   name "SHARED"
   untagged 7-8,16,23
H   tagged 5-6,10,17-22,24
   ip address 10.86.9.254 255.255.255.0
   exit
vlan 120
   name "WLAN"
   tagged 5-8,10,17-24
   ip address 10.86.12.254 255.255.255.0
   ip helper-address 10.86.11.2
   exit
vlan 130
   name "CCDATA"
   untagged 3-4
   tagged 13-15,17-24
   ip address 10.86.13.254 255.255.255.0
   ip helper-address 10.86.11.2
   exit
vlan 140
   name "OPSDATA"
   tagged 6,17-24
   ip address 10.86.14.254 255.255.255.0
   ip helper-address 10.86.11.2
   exit
vlan 150
  name "Wireless Guest"
   tagged 5-8,10,17-24
   ip address 10.86.15.254 255.255.255.0
   ip helper-address 10.86.11.2
   exit
vlan 160
   name "VPN"
   tagged 5-8,10,17-24
   ip address 10.86.16.254 255.255.255.0
   exit
vlan 200
   name "VOICE"
   untagged 9,11-12
   tagged 8,17-24
   ip address 10.86.20.254 255.255.255.0
   ip helper-address 10.86.11.2
   voice
   exit
vlan 999
   name "PUBLIC"
   tagged 22,24
   ip address 10.86.0.254 255.255.255.0
   exit
spanning-tree
password manager

Appreciate your help, as I've already tried to remove the relay information from the router but no luck.

paul driver · ‎02-20-2022

Hello

can you confirm what you did?

Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Paul

mudvayne15 · ‎02-21-2022

Hi Everyone, thank you for your help and feedback. This was resolved by updating the relay information of the cisco router.

The old HP switch had different physical addresses for its VLAN but this new Aruba switch uses 1 address (also the switch mac) only as seen below.

ifPhysAddress.652 = bc d7 a5 b4 e6 40
ifPhysAddress.741 = bc d7 a5 b4 e6 40
ifPhysAddress.771 = bc d7 a5 b4 e6 40
ifPhysAddress.781 = bc d7 a5 b4 e6 40
ifPhysAddress.791 = bc d7 a5 b4 e6 40
ifPhysAddress.801 = bc d7 a5 b4 e6 40
ifPhysAddress.811 = bc d7 a5 b4 e6 40
ifPhysAddress.851 = bc d7 a5 b4 e6 40
ifPhysAddress.1650 = bc d7 a5 b4 e6 40

Thanks again for the help

Translator · ‎03-06-2022

thanks for the help!