Hottest Questions This Month

10

votes

5

answers

2k

views

Is policy routing bad?

routing

answered Nov 9 at 18:07 Ron Trunk 47.3k

15

votes

2

answers

1k

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Router won't hold configuration

cisco

modified Nov 27 at 20:26 guntbert 125

4

votes

6

answers

3k

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packet routing between subnets on same vlan

modified Dec 2 at 17:32 Ryan Watry 1

3

votes

3

answers

440

views

LACPDU packets to pass through unmanaged switch

cisco switch switching port-channel

modified Nov 12 at 22:13 Zac67 42.4k

2

votes

2

answers

314

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Why are session states synchronized with high availability?

tcp

modified Nov 16 at 22:30 Darrell Root 738

2

votes

3

answers

205

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BGP and NAT Not working

nat bgp

modified Nov 25 at 18:47 Jesse P. 1,726

1

vote

4

answers

101

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does fiber optic transmit data as fast as light?

layer1 cable fiber bandwidth transceiver

modified Nov 13 at 1:40 Peter Green 8,675

1

vote

2

answers

73

views

Which port determines the protocol?

protocol-theory packet-analysis

modified Nov 20 at 7:01 Ron Maupin♦ 75.3k

3

votes

2

answers

137

views

Industrial Ethernet network design

routing switch ethernet dhcp

answered Nov 13 at 7:40 igloodan 1

2

votes

3

answers

77

views

Will pinging the multicast “all hosts” IP 224.0.0.1 fill my ARP cache with all hosts on my current subnet?

ip ipv4 ip-address arp multicast

modified Nov 21 at 5:12 Jesse P. 1,726

2

votes

2

answers

68

views

Arista VXLan with QinQ

vxlan arista qinq

answered Nov 14 at 15:41 Teun Vink♦ 13.3k

1

vote

1

answer

67

views

Why do Designated Ports in STP still send BPDUs if the otherside of the link is blocking?

switch spanning-tree

modified Nov 27 at 2:00 Ron Maupin♦ 75.3k

0

votes

2

answers

66

views

How to differentiate if a Cisco device is a L3 switch or a Router?

cisco switch router

modified Nov 21 at 17:26 Jesse P. 1,726

0

votes

3

answers

74

views

What is the purpose of a VPN?

vpn

answered Nov 26 at 13:30 Zac67 42.4k

3

votes

2

answers

68

views

Is the first address in an IPv6 subnet assignable?

ip subnet ipv6 protocol-theory ip-address

modified Nov 17 at 3:49 Ron Maupin♦ 75.3k

1

vote

3

answers

63

views

What is the intuition behind subnetting a base IP?

ipv4 subnet

modified Dec 1 at 4:59 Darrell Root 738

0

votes

4

answers

59

views

Why not put unicast address in IPv6 packet containing NDP neighbor solicitation instead of solicited-node multicast address?

ipv6 protocol-theory multicast ndp

answered Dec 3 at 3:49 Darrell Root 738

2

votes

1

answer

91

views

How do CPU and RAM affect a router's performance?

router performance

modified Nov 29 at 9:18 Zac67 42.4k

0

votes

1

answer

32

views

Next Header field in IPv6 vs Protocol field in IPv4, any difference?

ipv4 ipv6

answered Dec 3 at 12:28 Sander Steffann 6,510

0

votes

2

answers

46

views

How can i find which cisco switch port is connnected to specific port of Fortigate?

cisco switching fortigate fortinet lldp

modified Nov 7 at 10:58 Teun Vink♦ 13.3k

0

votes

1

answer

90

views

How to get IP address of device from its MAC address on network?

mac-address ip-address arp

answered Nov 10 at 8:54 Zac67 42.4k

0

votes

2

answers

39

views

Same /24 IP prefix, same AS for 2 different locations, possible?

routing ip bgp

modified yesterday Ron Trunk 47.3k

0

votes

2

answers

64

views

How does a Hub work when sending broadcast packages?

ethernet

answered Nov 11 at 18:22 Zac67 42.4k

0

votes

1

answer

38

views

Why Do We Use STP (Spanning Tree Protocol) or RSTP (Rapid Spanning Tree Protocol) When Packets are Not Routed Optimally?

protocol-theory switching spanning-tree

modified Nov 29 at 19:52 Ron Maupin♦ 75.3k

1

vote

1

answer

62

views

Difference between 802.1X vs 802.11 standards

ieee-802.11 ieee-802.1x

modified Nov 26 at 20:23 YLearn♦ 25k

1

vote

1

answer

57

views

Nmap differences between scanning with -Pn or without

network tcpdump

modified 2 days ago YLearn♦ 25k

1

vote

2

answers

56

views

Clock Synchronization in a Network

switching layer2 lan ntp

answered Nov 10 at 11:00 vidarlo 292

1

vote

1

answer

55

views

How does MU-MIMO allow multiple users to talk at the same time avoiding collisions?

ieee-802.11

answered Nov 27 at 21:44 YLearn♦ 25k

0

votes

3

answers

88

views

which is faster and why: One big file or split the big file into chunks, then transfer it over the Internet

internet speed

modified Nov 9 at 9:25 Zac67 42.4k

2

votes

1

answer

51

views

Does Juniper have an equivalent of 'show security pki local-certificate' for remote certificates?

ike juniper

answered Dec 2 at 23:28 Benjamin Dale 8,202

0

votes

1

answer

48

views

Is 1111::/64 a valid IPv6 address?

router

answered Nov 11 at 10:42 Teun Vink♦ 13.3k

1

vote

1

answer

47

views

Filter tagged route to downstream routers

cisco cisco-ios ospf eigrp redistribution

modified Nov 25 at 16:58 Darrell Root 738

4

votes

1

answer

36

views

Function of the P-bit flag in an IPv6 multicast

ip ipv6 protocol-theory ip-address multicast

modified Nov 17 at 16:59 Ron Maupin♦ 75.3k

2

votes

1

answer

46

views

Why do wifi devices slow down as other devices start doing work?

wireless ieee-802.11

answered Nov 21 at 23:33 Ron Trunk 47.3k

0

votes

1

answer

53

views

How to interpret subnet mask [duplicate]

subnet

modified Nov 13 at 8:17 JFL 14k

1

vote

1

answer

68

views

meraki bridge mode: dhcp is untagged

dhcp ieee-802.11 bridge meraki

modified Dec 2 at 22:56 YLearn♦ 25k

0

votes

1

answer

32

views

how to get the smallest summary route? [duplicate]

subnet

answered Nov 14 at 9:13 JFL 14k

-2

votes

1

answer

40

views

How is IP tramsmitted from client to server? I checked HTTP requests but its not there [closed]

ip network ip-address

answered Nov 22 at 14:27 Ron Trunk 47.3k

-2

votes

2

answers

80

views

How to discover a host when you don't know its mac, ip and subnet?

ip mac-address network-discovery

modified 20 hours ago Jaco'W 3

2

votes

2

answers

58

views

SFP-10G-LRM compatible with Single Mode Fiber?

fiber sfp optics

answered Nov 25 at 21:25 YLearn♦ 25k

0

votes

1

answer

35

views

Macsec and Optics

optics

answered Nov 21 at 13:35 Ron Trunk 47.3k

1

vote

1

answer

57

views

Confusion about IANA “Protocol Numbers” registery

ip ipv4 ipv6 protocol-theory tunnel

modified Nov 25 at 7:12 Ron Maupin♦ 75.3k

2

votes

1

answer

44

views

Cisco MIB for physical memory

cisco

modified Nov 20 at 19:39 Ricky Beam 23.6k

-3

votes

0

answers

68

views

100GB optic which fiber?

optics

modified Nov 27 at 10:13 brandon 1

0

votes

1

answer

32

views

Unicast Adjacency Routes Nexus (AM) Cisco Nexus

routing ip switching layer2 layer3

answered Nov 14 at 12:00 mortirolo 51

3

votes

1

answer

50

views

No packets showing up in Wireshark despite Client-Server communication

wireshark loopback

answered Nov 25 at 9:53 Mantabit 41

1

vote

1

answer

38

views

tcpdump filter for ERSPAN session ID value

tcpdump

modified Nov 27 at 10:59 Andrey Prokhorov 2,121

0

votes

2

answers

47

views

Do all computers on a wifi network have the same Network ID in their IP address?

network ieee-802.11 ip-address

answered Nov 25 at 21:11 YLearn♦ 25k

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