OmniSwitch OS6860/OS6900/OS10K Troubleshooting Guide Part No.032996-00 Rev.A
AOS Release 7.X and 8.X January 2015
Alcatel-Lucent Page 59 of 148
Configuration
DHCP Relay Agent Service
ip helper <standard | per-vlan>
ip helper address 172.6.5.1 vlan 1
no ip helper address 172.6.5.1 ! standard mode
no ip helper address vlan 20 address 172.6.20.1 ! per VLAN mode.
ip helper forward delay
ip helper maximum hops
ip helper address 210.10.1.100 162.3.5.4
no ip helper statistics vlan <vlan id> address <ipv4addr> ! per vlan mode
ip helper agent-information <enable | disable>
ip helper agent-information <replace | keep | drop>
ip helper boot-up <enable | disable>
ip helper pxe-support <enable | disable>
Generic UDP Relay Service
ip udp relay {service <name> | port < number>}
ip udp relay {service <name> | port < number>} vlan [number]
ip udp relay no {service <name> | port < number>}
ip udp relay {service <name> | port < number>} no vlan [number }
In AOS7 and AOS8, it is still required to create the UDP port to forward either by well known service name or
UDP port and then the destination VLANs or VLAN range."ip udp relay no {service <name> | port
<number>}" deletes the entire associated destination VLANs configuration for that service or port.
In AOS7 and AOS8 the term "service" means a Generic UDP Relay Service which will be translated to an UDP
port.
9.3. Basic troubleshooting
DHCP Relay Agent Service
Display statistics:
-> show ip helper statistics
Global Statistics :
Reception From Client :
Total Count = 21, Delta = 15
Forw Delay Violation :
Total Count = 0, Delta = 0
Max Hops Violation :
Total Count = 0, Delta = 0
Agent Info Violation :
Total Count = 0, Delta = 0
Invalid Gateway IP :
Total Count = 0, Delta = 0
Server Specific Statistics :
From any Vlan to Server 192.168.10.254
Tx Server :
Total Count = 14, Delta = 14
InvAgentInfoFromServer:
Total Count = 0, Delta = 0
Clear statistics:
-> no ip helper statistics
-> no ip helper statistics global-only
-> no ip helper statistics server-only
Clear statistics in the standard mode:
-> no ip helper statistics address <ipv4addr>
Clear statistics in the per vlan mode:
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