10-18-2006 02:05 AM - edited 03-05-2019 12:19 PM
Guys, Can you help.
In the type 5 (hello packet) there is another eigrp release version 1.2 apart from the version 2 in the same header.
This version 1.2 does not appear in any other eigrp packet type, so can I assume this is the revision of the hello protocol for eigrp?
So EIGRP Version 2 hello protocol version 1.2?
Also there is a concept of eigrp Major/Minor releases? What is this and can someone explain.
I am embarking on an EIGRP migration and need to make sure all my EIGRP versions are compatable.
Many thx
Ken
=================================================================
Cisco EIGRP
Version = 2
Opcode = 1 (Update)
Checksum = 0x8b8f
Flags = 0x00000001
Sequence = 6
Acknowledge = 0
Autonomous System : 1
IP internal route = 10.100.1.0/24
Type = 0x0102 (IP internal route)
Size = 28 bytes
Next Hop = 0.0.0.0
Delay = 128000
Bandwidth = 256
MTU = 1514
Hop Count = 0
Reliability = 255
Load = 1
Reserved
Prefix Length = 24
Destination = 10.100.1.0
IP internal route = 10.101.2.0/24
Type = 0x0102 (IP internal route)
Size = 28 bytes
Next Hop = 0.0.0.0
Delay = 128000
Bandwidth = 256
MTU = 1514
Hop Count = 0
Reliability = 255
Load = 1
Reserved
Prefix Length = 24
Destination = 10.101.2.0
=================================================================
Cisco EIGRP
Version = 2
Opcode = 3 (Query)
Checksum = 0xeff6
Flags = 0x00000000
Sequence = 6
Acknowledge = 0
Autonomous System : 200
IP internal route = 10.10.6.0/24 - Destination unreachable
Type = 0x0102 (IP internal route)
Size = 28 bytes
Next Hop = 0.0.0.0
Delay = 4294967295
Bandwidth = 0
MTU = 1514
Hop Count = 0
Reliability = 0
Load = 0
Reserved
Prefix Length = 24
Destination = 10.10.6.0
=================================================================
Cisco EIGRP
Version = 2
Opcode = 4 (Reply)
Checksum = 0xf4eb
Flags = 0x00000000
Sequence = 7
Acknowledge = 6
Autonomous System : 200
IP internal route = 10.10.6.0/24 - Destination unreachable
Type = 0x0102 (IP internal route)
Size = 28 bytes
Next Hop = 0.0.0.0
Delay = 4294967295
Bandwidth = 2560
MTU = 1500
Hop Count = 1
Reliability = 255
Load = 1
Reserved
Prefix Length = 24
Destination = 10.10.6.0
=================================================================
Cisco EIGRP
Version = 2
Opcode = 5 (Hello)
Checksum = 0xeece
Flags = 0x00000000
Sequence = 0
Acknowledge = 0
Autonomous System : 1
EIGRP Parameters
Type = 0x0001 (EIGRP Parameters)
Size = 12 bytes
K1 = 1
K2 = 0
K3 = 1
K4 = 0
K5 = 0
Reserved
Hold Time = 15
Software Version: IOS=12.1, EIGRP=1.2
Type = 0x0004 (Software Version)
Size = 8 bytes
IOS release version = 12.1
EIGRP release version = 1.2
....................................................................
Cisco EIGRP
Version = 2
Opcode = 5 (Acknowledge)
Checksum = 0xfd2c
Flags = 0x00000000
Sequence = 0
Acknowledge = 6
Autonomous System : 200
===================================================================
10-18-2006 02:25 AM
Also, it is reported in the output below ?
Router>sh ip eigrp nei det
IP-EIGRP neighbors for process 1
H Address Interface Hold Uptime SRTT RTO Q Seq Type
(sec) (ms) Cnt Num
15 x.x.x.x Fa1/0/0 12 1w3d 28 200 0 29092
Version 12.1/1.2, Retrans: 71, Retries: 0
Many thx all,
Ken
10-18-2006 03:12 AM
Ahh,
I have now understood that this type 5 packet has two TLVs in it. One for EIGRP parameters (0x0001) and one for Software version (0x0004)- "General TLVs" but do not understand the difference between revision two and software version 1.2 and assume that the other eigrp packets dont need general TLVs? Why, I dont know.
Still some help would be great :)
Thx
Ken
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