H Hex Packet Decoder

10,464,705 packets decoded

c2:02:29:98:00:01 → ISIS-all-level-1-IS's ISIS CSNP L1 CSNP, Source-ID: 3333.3333.3333.00, Start LSP-ID: 0000.0000.0000.00-00, End LSP-ID: ffff.ffff.ffff.ff-ff

0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
01	80	C2	00	00	14	C2	02	29	98	00	01	00	56	FE	FE
03	83	21	01	00	18	01	00	00	00	53	33	33	33	33	33
33	00	00	00	00	00	00	00	00	00	FF	FF	FF	FF	FF	FF
FF	FF	09	30	04	AA	22	22	22	22	22	22	00	00	00	00
00	0F	B5	03	04	6A	33	33	33	33	33	33	00	00	00	00
00	10	17	49	02	68	33	33	33	33	33	33	02	00	00	00
00	04	7F	9F

3 protocols in packet (100 bytes):

Ethernet

LLC

ISIS

Frame 1: 100 bytes on wire (800 bits)
- Section number: 1
- Interface id: 0 (Interface, hpd0)
  - Interface name: Interface, hpd0
- Encapsulation type: Ethernet (1)
- Arrival Time: Mar 10, 2026 15:35:44.000001000 CET
- UTC Arrival Time: Mar 10, 2026 14:35:44.000001000 UTC
- Epoch Arrival Time: 1773153344.000001000
- Time shift for this packet: 0.000000000 seconds
- Time delta from previous captured frame: 0.000000000 seconds
- Time delta from previous displayed frame: 0.000000000 seconds
- Time since reference or first frame: 0.000000000 seconds
- Frame Number: 1
- Frame Length: 100 bytes (800 bits)
- Capture Length: 100 bytes (800 bits)
- Frame is marked: False
- Frame is ignored: False
- Protocols in frame: eth:llc:osi:isis:isis.csnp
IEEE 802.3 Ethernet
- Destination: ISIS-all-level-1-IS's (01:80:c2:00:00:14)
  - .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
  - .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
- Source: c2:02:29:98:00:01 (c2:02:29:98:00:01)
  - .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
  - .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
- Length: 86
- Stream index: 0
Logical-Link Control
- DSAP: ISO Network Layer (0xfe)
  - 1111 111. = SAP: ISO Network Layer
  - .... ...0 = IG Bit: Individual
- SSAP: ISO Network Layer (0xfe)
  - 1111 111. = SAP: ISO Network Layer
  - .... ...0 = CR Bit: Command
- Control field: U, func=UI (0x03)
  - 000. 00.. = Command: Unnumbered Information (0x00)
  - .... ..11 = Frame type: Unnumbered frame (0x3)
ISO 10589 ISIS InTRA Domain Routeing Information Exchange Protocol
- Intradomain Routing Protocol Discriminator: ISIS (0x83)
- Length Indicator: 33
- Version/Protocol ID Extension: 1
- ID Length: 0
- 000. .... = Reserved: 0x0
- ...1 1000 = PDU Type: L1 CSNP (24)
- Version: 1
- Reserved: 0
- Maximum Area Addresses: 0
ISO 10589 ISIS Complete Sequence Numbers Protocol Data Unit
- PDU length: 83
- Source-ID: 3333.3333.3333
- Source-ID-Circuit: 00
- Start LSP-ID: 0000.0000.0000.00-00
- End LSP-ID: ffff.ffff.ffff.ff-ff
- LSP entries (t=9, l=48)
  - Type: 9
  - Length: 48
  - LSP Entry
    - LSP Sequence Number: 0x0000000f
    - Remaining Lifetime: 1194
    - LSP checksum: 0xb503
  - LSP-ID: 2222.2222.2222.00-00
  - LSP Entry
    - LSP Sequence Number: 0x00000010
    - Remaining Lifetime: 1130
    - LSP checksum: 0x1749
  - LSP-ID: 3333.3333.3333.00-00
  - LSP Entry
    - LSP Sequence Number: 0x00000004
    - Remaining Lifetime: 616
    - LSP checksum: 0x7f9f
  - LSP-ID: 3333.3333.3333.02-00

0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
01	80	C2	00	00	14	C2	02	29	98	00	01	00	56	FE	FE
03	83	21	01	00	18	01	00	00	00	53	33	33	33	33	33
33	00	00	00	00	00	00	00	00	00	FF	FF	FF	FF	FF	FF
FF	FF	09	30	04	AA	22	22	22	22	22	22	00	00	00	00
00	0F	B5	03	04	6A	33	33	33	33	33	33	00	00	00	00
00	10	17	49	02	68	33	33	33	33	33	33	02	00	00	00
00	04	7F	9F

0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
01	80	C2	00	00	14	C2	02	29	98	00	01	00	56	FE	FE
03	83	21	01	00	18	01	00	00	00	53	33	33	33	33	33
33	00	00	00	00	00	00	00	00	00	FF	FF	FF	FF	FF	FF
FF	FF	09	30	04	AA	22	22	22	22	22	22	00	00	00	00
00	0F	B5	03	04	6A	33	33	33	33	33	33	00	00	00	00
00	10	17	49	02	68	33	33	33	33	33	33	02	00	00	00
00	04	7F	9F

0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
01	80	C2	00	00	14	C2	02	29	98	00	01	00	56	FE	FE
03	83	21	01	00	18	01	00	00	00	53	33	33	33	33	33
33	00	00	00	00	00	00	00	00	00	FF	FF	FF	FF	FF	FF
FF	FF	09	30	04	AA	22	22	22	22	22	22	00	00	00	00
00	0F	B5	03	04	6A	33	33	33	33	33	33	00	00	00	00
00	10	17	49	02	68	33	33	33	33	33	33	02	00	00	00
00	04	7F	9F