Configuration Generator

Generate OSPF configurations for Cisco and Juniper routers based on your network requirements.

Configuration Parameters

Vendor

OSPF Process ID

Router ID

Authentication

Network Interface

Auto-cost Reference Bandwidth (10 Gbps)

Generated Configuration

! Configuration will appear here

Configuration Examples

Packet Analyzer

Analyze OSPF packet formats and decode packet contents for educational purposes.

Packet Input

OSPF Packet Type

Packet Data (Hex)

Enter packet data as hexadecimal values

Packet Analysis

Enter packet data and click "Analyze Packet" to see the decoded information.

Field Reference

Common OSPF Header Fields:

Version: OSPF version (2)
Type: Packet type (1-5)
Length: Total packet length
Router ID: Originating router
Area ID: OSPF area identifier
Checksum: Header checksum
Auth Type: Authentication type
Auth Data: Authentication data

OSPF Calculator

Calculate OSPF metrics, timers, and network parameters for optimal network design.

Interface Cost Calculator

Reference Bandwidth (Mbps)

Default: 100 Mbps (can be set to 1000 or 10000 for modern networks)

Interface Bandwidth (Mbps)

Calculated OSPF Cost

cost units

Common Interface Costs:

Interface Type	Bandwidth	Cost (100M ref)
Serial	64 Kbps	1562
T1	1.544 Mbps	65
Ethernet	10 Mbps	10
Fast Ethernet	100 Mbps	1
Gigabit Ethernet	1000 Mbps	1

Timer Calculator

Hello Interval (seconds)

Dead Interval Multiplier

Dead interval = Hello interval × Multiplier

Dead Interval (seconds)

seconds

Recommended Timer Settings:

Network Type	Hello	Dead	Use Case
LAN (Default)	10s	40s	Office networks
LAN (Fast)	1s	3s	Data centers
WAN (Stable)	30s	120s	Satellite links
WAN (Standard)	10s	40s	MPLS networks

Subnet Calculator

Network Address

Subnet Mask

Wildcard Mask (for OSPF network statements)

Network Range

Available Hosts

hosts

Area Size Calculator

Number of Routers

Networks per Router

Estimated LSAs

LSAs

Area size recommendations will appear here based on your input.