Hottest Questions This Month

16

votes

4

answers

4k

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Why is 10.1.255.255 an invalid broadcast address?

answered Oct 11 at 23:19 grahamj42 290

3

votes

2

answers

2k

views

Why the first octet of a MAC address always end with a binary 0?

ipv6 mac-address ip-address

modified Sep 26 at 3:20 Ron Maupin♦ 74.1k

10

votes

2

answers

1k

views

How many stack cables would be needed if we want to stack two 3850 switches

cisco switch stacking cisco-3850 stackwise

answered Sep 23 at 15:20 YLearn♦ 24.4k

3

votes

0

answers

1k

views

Fix Ethernet 10/100 PoE cable with 7 out of 8 wires alive [migrated]

ethernet power-over-ethernet

modified Sep 24 at 4:13 Ron Maupin♦ 74.1k

0

votes

2

answers

66

views

How BGP guarantees same route for a forwarded packet?

routing router bgp packet-path

modified Oct 13 at 19:19 Zac67 41k

0

votes

2

answers

60

views

what is difference between MSS and Window Size?

networking

modified Oct 6 at 19:38 Brian Turner 21

1

vote

1

answer

77

views

delete object network in cisco ASA with packet tracert

cisco-asa packet-tracer acl

modified Sep 19 at 12:38 user56700 1,600

4

votes

2

answers

72

views

Why Should I Care That Fully Meshed Peering Leads to Exponential Growth of Total Connections?

cloud

answered Sep 25 at 19:54 Teun Vink♦ 12.9k

1

vote

2

answers

56

views

Different Wi-Fi security levels under same private subnet

subnet ieee-802.11 security

modified Oct 5 at 4:17 Mike Pham 8

0

votes

2

answers

43

views

Using different speed in switch ports?

switch

answered Sep 19 at 20:03 Zac67 41k

5

votes

1

answer

98

views

Getting lot of unwanted broadcasts on my network

arp bandwidth broadcast

modified Sep 30 at 15:51 Zac67 41k

0

votes

4

answers

36

views

ACL on routers to block TCP/UDP ports

layer3 acl

answered Oct 2 at 4:01 rnxrx 5,051

0

votes

3

answers

56

views

Difference between Port (all VLANs allowed) and Trunk

vlan fortinet

answered Oct 2 at 5:53 Mahdi 111

0

votes

1

answer

71

views

How does NAT ensure that every machine has a unique public IP?

router ip ipv4 nat ip-address

modified Oct 13 at 23:36 Ron Maupin♦ 74.1k

0

votes

3

answers

55

views

IPSec VPN timers query

vpn ipsec networking

answered Sep 18 at 21:48 Eddie 10.7k

1

vote

1

answer

54

views

new SFP network for newbies

network fiber sfp

modified Sep 24 at 5:53 Zac67 41k

1

vote

4

answers

66

views

Why ICMP Destination Port Unreachable error messeage is generated for unreliable UDP packets?

udp icmp

answered Oct 14 at 12:52 YLearn♦ 24.4k

1

vote

1

answer

100

views

How to show a Juniper interface bandwidth usage?

juniper juniper-ex

answered Sep 23 at 4:48 aircraft 753

0

votes

2

answers

71

views

What happens to undetected Ethernet errors?

ethernet

modified Oct 6 at 16:09 Peter Green 8,562

0

votes

1

answer

33

views

Both static and dynamic routing in a router?

routing

answered Sep 27 at 7:34 Ron Trunk 46k

2

votes

1

answer

68

views

802.1Q Tagged BPDU?

spanning-tree

answered Sep 24 at 13:02 Zac67 41k

0

votes

3

answers

52

views

Access a pc web service with different ip/mask in on-site network

routing switch firewall

answered yesterday Sebastian 518

0

votes

1

answer

40

views

Is there a way to determine my network transportation to specific path?

routing router network networking route

modified Sep 19 at 8:29 JFL 13.8k

2

votes

1

answer

63

views

Is TR-069 a security risk?

security

modified Oct 4 at 9:22 Zac67 41k

0

votes

2

answers

36

views

How to connect to the console router with limited length of roll-over cable?

cisco cable

answered Oct 10 at 20:03 Zac67 41k

2

votes

2

answers

58

views

How to ping from PC on EIGRP area to PC on OSPF area without middle router?

cisco-ios ospf ping packet-tracer eigrp

modified Sep 24 at 11:13 Jesse P. 1,613

0

votes

1

answer

30

views

Can communication to broadcast 224.0.0.1 be made to reach hosts outside of the local subnet?

multicast best-practices

answered Oct 10 at 6:18 Ron Maupin♦ 74.1k

1

vote

2

answers

63

views

Ansible doesn't return valid information

automation ansible

answered Oct 1 at 6:46 deuter 11

0

votes

1

answer

40

views

How to create a routing loop? [closed]

routing loop

modified Oct 8 at 3:41 Eddie 10.7k

0

votes

1

answer

30

views

Pros and cons of the idea of parallell data transmission

internet

answered Sep 26 at 4:20 Ron Maupin♦ 74.1k

2

votes

1

answer

48

views

What are network port maps and what are they used for by the networking team in an organization?

networking switchport

modified Sep 25 at 22:25 Jesse P. 1,613

0

votes

2

answers

48

views

'flat' network design

cisco vpn

answered Oct 12 at 2:24 Dee 1

0

votes

1

answer

37

views

How is port 80 associated with application port?

transport-protocol

modified Oct 7 at 11:07 Marc 'netztier' Luethi 5,850

3

votes

1

answer

47

views

Moving from 12.x IOS to 15.x IOS - Cisco 3750G

cisco-ios cisco-ios-12 cisco-ios-15 cisco-3750

modified Sep 30 at 10:54 user56700 1,600

0

votes

1

answer

95

views

How to Run Static IP Through Comcast Business Class Modem to Router?

routing ip

answered Oct 6 at 21:02 Zac67 41k

0

votes

3

answers

27

views

Can we set filewall rule to control with in subnet? and also if we use 2 subnet on same interface Is this effect to firewall rule?

vlan firewall

modified Sep 22 at 20:35 Jesse P. 1,613

0

votes

1

answer

44

views

Is this device a network hub? [closed]

switch

answered Oct 9 at 10:31 Zac67 41k

1

vote

2

answers

43

views

Not a four-way handshake in Cisco Packet Tracer?

tcp packet-tracer

answered Oct 15 at 6:26 Zac67 41k

1

vote

1

answer

33

views

Where the `term` and `policer` would appear?

juniper juniper-junos

answered Sep 23 at 17:09 Jordan Head 3,331

0

votes

1

answer

33

views

vpc/mlag block half of uplink?

vpc port-channel arista

modified Oct 1 at 20:09 JFL 13.8k

1

vote

3

answers

53

views

How to exclude interfaces without description on 'sh int description' command using regex?

cisco ios-xe

modified Oct 14 at 18:08 Community♦ 1

0

votes

1

answer

41

views

What is a substrate network?

network virtual

answered yesterday Teun Vink♦ 12.9k

0

votes

1

answer

63

views

Junos, accidentally deleted a FIB entry, how to re-add?

juniper juniper-junos

answered Oct 10 at 0:42 Benjamin Dale 8,112

0

votes

1

answer

49

views

How data travel from a node to a destination IP address? [duplicate]

ip mac-address arp ndp

modified Sep 25 at 4:17 Livy 136

0

votes

1

answer

38

views

how to factory reset ASR 1001-X

cisco router cisco-asr asr

modified Sep 27 at 4:14 Ron Maupin♦ 74.1k

0

votes

2

answers

61

views

How does a router route traffic on a LAN, in detail?

router lan

answered Oct 4 at 21:48 Peter Green 8,562

1

vote

1

answer

46

views

How does a DNS response reach a client behind a NAT?

nat udp dns

answered Oct 1 at 8:54 Eddie 10.7k

1

vote

1

answer

33

views

what are Hardware size and protocol size in ARP header? Attached image

protocol-theory arp networking

modified Oct 7 at 17:32 Ron Maupin♦ 74.1k

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