Hi users,

Our PF deployed in office A and we have successfully use it to authenticate and 
control devices in office B, via the routed network feature. It works well with 
normal VLAN assignment and registration VLAN assignment and IP distribution.


But last night when we began to use PF in office A, the local PF network, it 
came with strange issue. For safe devices PF can assign the correct employees 
role to Aruba AC and the device can then get a normal IP via our online DHCP 
server. For dangerous device we let PF assign registration role with some fix 
steps in the redirecting url. All this works well in office B. But in office A, 
where PF located, we found the user can't get correct registration IP from PF.
We are sure AC received PF's RADIUS accept packet and change the device role to 
registration, and we find PF first give a DHCPOFFER and DHCPACK to registration 
device but then suddenly give a DHCPNAK to take the IP back. This caused the 
device in registration role can't get a correct registration IP. 
Anyone met this issue during registration VLAN ? Really need your help.


Our some key config file is as below:
pf.conf:
[interface eth0]
ip=172.21.3.120
type=management,portal,high-availability
mask=255.255.255.0
[interface eth1.133]
enforcement=vlan
ip=172.21.132.1
type=internal
mask=255.255.255.0
[interface eth1.134]
enforcement=vlan
ip=172.21.136.1
type=internal
mask=255.255.255.0


networks.conf:
#office A local network
[172.21.132.0]
dns=172.21.132.1
dhcp_start=172.21.132.10
gateway=172.21.135.254 <--This is registration gateway in switch
domain-name=vlan-registration.cap.com
nat_enabled=disabled
named=enabled
dhcp_max_lease_time=1800
fake_mac_enabled=disabled
dhcpd=enabled
dhcp_end=172.21.135.246
type=vlan-registration
netmask=255.255.252.0
dhcp_default_lease_time=1500


[172.21.136.0]
dns=172.21.136.1
dhcp_start=172.21.136.10
gateway=172.21.136.254<--This is isolation gateway in switch
domain-name=vlan-isolation.cpa.com
nat_enabled=disabled
named=enabled
dhcp_max_lease_time=1800
fake_mac_enabled=disabled
dhcpd=enabled
dhcp_end=172.21.136.246
type=vlan-isolation
netmask=255.255.255.0
dhcp_default_lease_time=1500


#office B routed network
[172.23.10.0]
dns=172.21.132.1
next_hop=172.21.135.254<--This is registration gateway in switch in office A
gateway=172.23.10.254<--This is registration gateway in switch in office B
dhcp_start=172.23.10.10
domain-name=vlan-registration.cpa.com
nat_enabled=0
named=enabled
dhcp_max_lease_time=1800
dhcpd=enabled
fake_mac_enabled=0
netmask=255.255.255.0
type=vlan-registration
dhcp_end=172.23.10.246
dhcp_default_lease_time=1500
[172.23.11.0]
dns=172.21.136.1
next_hop=172.21.136.254<--This is isolation gateway in switch in office A
gateway=172.23.11.254<--This is isolation gateway in switch in office B
dhcp_start=172.23.11.10
domain-name=vlan-isolation.cpa.com
nat_enabled=0
named=enabled
dhcp_max_lease_time=1800
dhcpd=enabled
fake_mac_enabled=0
netmask=255.255.255.0
type=vlan-isolation
dhcp_end=172.23.11.246
dhcp_default_lease_time=1500




Routing table:
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         172.21.3.254    0.0.0.0         UG    0      0        0 eth0
172.23.10.0     172.21.135.254  255.255.255.0   UG    0      0        0 eth1.133
172.23.11.0     172.21.136.254  255.255.255.0   UG    0      0        0 eth1.134
169.254.0.0     0.0.0.0         255.255.255.252 U     0      0        0 didi-b
169.254.0.0     0.0.0.0         255.255.0.0     U     1002   0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1003   0        0 eth1
169.254.0.0     0.0.0.0         255.255.0.0     U     1066   0        0 eth1.133
169.254.0.0     0.0.0.0         255.255.0.0     U     1067   0        0 eth1.134
172.21.3.0      0.0.0.0         255.255.255.0   U     0      0        0 eth0
172.21.132.0    0.0.0.0         255.255.252.0   U     0      0        0 eth1.133
172.21.136.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1.134
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