ATDHCP-MIB
File:
ATDHCP-MIB.mib (9563 bytes)
Imported modules
Imported symbols
Defined Types
Defined Values
atswitchDHCPCurrentDHCPClientAddress |
1.3.6.1.4.1.207.8.10.11.1.1 |
Current IP address of the client. To start with,it might be null .
This is filled by the server when sending a DHCPOFFER and
the client uses the most comfortable offer from offers sent by
different DHCP servers. A DHCPREQUEST packet is sent with the
Client address agreed upon to the selected server ( Broadcast).
Server Acks back this packet which is where Client/Server moves to
the Bound state. Once reached into Bound state, the client address
is made the official address on the client.
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Status: mandatory |
Access: read-only |
OBJECT-TYPE |
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IpAddress |
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atswitchDHCPSubnetMask |
1.3.6.1.4.1.207.8.10.11.1.2 |
When the client/server reaches the BOUND state, this is one of the
parameters set by the server.
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Status: mandatory |
Access: read-only |
OBJECT-TYPE |
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IpAddress |
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atswitchDHCPCurrentRelayAgentAddress |
1.3.6.1.4.1.207.8.10.11.1.3 |
The IP address of the DHCP relay Agent on the same subnet.
Normally there will be no DHCP server on each of the subnet and
this Relay Agent will act in sending server accross the subnets.
There might not be any relay agent. This depends on the network
Toplogy like where is the DHCP server and DHCP client.
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Status: mandatory |
Access: read-only |
OBJECT-TYPE |
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IpAddress |
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atswitchDHCPNextDHCPServerAddress |
1.3.6.1.4.1.207.8.10.11.1.4 |
The IP address of the next DHCP server to be used during bootstrap.
This address is sent by the DHCP server in the messages
DHCPOFFER, DHCPACK,DHCPNACK.
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Status: mandatory |
Access: read-only |
OBJECT-TYPE |
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IpAddress |
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atswitchDHCPLeaseTimer |
1.3.6.1.4.1.207.8.10.11.2.1 |
When the client/server reaches the BOUND state, this is one of the
parameters set by the server.
The lease time period in seconds for the DHCP client for using IP
address on lease from the server. At the end of 50% of this timer a
renewal request is sent by the client . This is the next Object
atswitchDHCPRenewalTimer.
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Status: mandatory |
Access: read-only |
OBJECT-TYPE |
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TimeTicks |
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atswitchDHCPReacquisitionTimer |
1.3.6.1.4.1.207.8.10.11.2.2 |
When the client/server reaches the BOUND state, this is one of the
parameters set by the server.
Mentioned in RFC2131 4.4.5 as T1, this renewal time period in secs
for the DHCP client is for using IP address on lease from the server
Once the Reacquisition Timer period in secs afetr the lease period
is reached, the client sends a DHCPREQUEST to the DHCP server reque-
-sting for renewal of the lease.
Default would be 50% of the Lease timer which is represeneted
by the above object. The client moves from BOUND to RENEW state
once the DHCPREQUEST is sent after time T1 secs is passed from the
start of to release time.
T1 is always less than T2 ( see below for 'T2') which is lesss than
the lease Timer period.
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Status: mandatory |
Access: read-only |
OBJECT-TYPE |
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TimeTicks |
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atswitchDHCPExpirationTimer |
1.3.6.1.4.1.207.8.10.11.2.3 |
When the client/server reaches the BOUND state, this is one of the
parameters set by the server.
Mentioned in RFC2131 4.4.5 as T2,this Expiration time period in secs
is the time period in secs during which DHCP has gone through the
BOUND->RENEWAL state. After T1 secs and when the state machine
reaches T2 secs, ( T1 < T2 < lease period), DHCP client sends
another DHCPREQUEST to the server asking the server to renew the
lease for the IP parameters.
By default it would be 87.5% of the Lease timer .If there is DHCPACK
then the DHCP client moves from REBIND to BOUND. Else it moves to
INIT state where it starts all over again sending a request for
DHCPDISCOVER.
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Status: mandatory |
Access: read-only |
OBJECT-TYPE |
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TimeTicks |
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