Hottest Questions This Month

2

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6

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2k

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Why can't we create a hierarchy of hubs?

modified Jul 8 at 8:48 Zac67 50.5k

0

votes

2

answers

277

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Is TCP's MSL value equivalent to IP's TTL value?

ipv4 tcp ttl

modified Jun 15 at 10:59 JFL 16k

0

votes

2

answers

190

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Recommended switches and routers configurations for a building of 5 floors?

cisco spanning-tree architecture

modified Jul 8 at 11:46 Zac67 50.5k

0

votes

3

answers

61

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32 bits or 30 bits for subnet mask

ip subnet ip-address

modified Jun 30 at 2:47 auspicious99 397

0

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3

answers

55

views

Private IP Address Subnetting Standards. How strict are they today?

ipv4 network

modified Jun 23 at 2:31 AsusServerTek 1

2

votes

1

answer

66

views

How does ISIS find a next hop address for a prefix learned by ISIS?

juniper is-is

modified Jun 22 at 11:55 Jordan Head 4,367

1

vote

1

answer

40

views

PortFast For Some Networks But Not Others

cisco cisco-catalyst

answered Jun 19 at 18:40 Ron Trunk 52.4k

2

votes

2

answers

61

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Security issues with DHCP snooping on cascading switches

dhcp dhcp-snooping

modified Jun 24 at 3:50 Vinícius Ferrão 396

0

votes

3

answers

58

views

Assigning IP addresses to multiple switches

ip network dhcp networking

modified Jul 6 at 8:51 Zac67 50.5k

0

votes

1

answer

41

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What clear substance could be sprayed on RJ45 Ethernet terminals? [closed]

ethernet cable

modified Jun 30 at 18:43 B.C. 3

0

votes

2

answers

39

views

Network topology for merging two different layer 2 networks

vlan subnet layer2

modified Jun 22 at 15:59 asadz 103

0

votes

3

answers

47

views

Why is the trace route to a particular IP not the same as trace route from that IP to mine?

networking traceroute

answered Jun 12 at 16:51 Zac67 50.5k

1

vote

1

answer

60

views

Do mobile phones continuously broadcast their IMEI number so that cell towers can find them?

wireless networking

modified Jun 19 at 11:51 auspicious99 397

0

votes

3

answers

36

views

Can the network devices run out of ephemeral ports due to high use of websockets?

tcp networking

answered Jul 6 at 14:04 Jeff Wheeler 1,226

1

vote

1

answer

46

views

What are the differences between injecting the default route to IGP using a static route or using a generated route?

routing juniper design

answered Jun 25 at 13:33 Jeff Wheeler 1,226

1

vote

2

answers

58

views

Are all packets addressed with the MAC address of the router as they leave the machine?

router mac-address ip-address layer2 layer3

modified 2 days ago ShayakSarkar 67

1

vote

2

answers

35

views

How do routers. switches, bridges and hubs deal with corrupted data?

switch router ethernet bridge

modified Jun 14 at 16:32 Ron Maupin♦ 80.6k

0

votes

2

answers

34

views

how does fiber optics transmit digital data?

fiber

answered Jun 12 at 10:34 JFL 16k

0

votes

1

answer

56

views

Why some situations, PC can connected to trunk port and work fine?

vlan spanning-tree trunk

answered Jun 16 at 6:46 JFL 16k

0

votes

2

answers

71

views

I still can't understand how routers work

router interface

answered Jul 8 at 9:12 Sagar Uragonda 11

0

votes

2

answers

54

views

OSPF routes through L3 Etherchannels

cisco

answered Jun 26 at 14:18 Ron Trunk 52.4k

0

votes

1

answer

25

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Cisco ASA: What is the best way to restrict access of nodes in the same network to each other? [closed]

cisco cisco-asa

answered Jun 26 at 12:28 JFL 16k

2

votes

1

answer

66

views

what were the classless routing protocols used with VLSM when it was first introduced?

ipv4 subnet protocol-theory ip-address layer3

modified Jun 17 at 6:12 Teun Vink♦ 13.7k

1

vote

1

answer

39

views

What's the difference between L2TP and L2TPv3? [closed]

mpls tunnel l2tp l2vpn

modified Jun 23 at 8:05 Zac67 50.5k

0

votes

2

answers

63

views

OSI Layer Model

osi

modified Jun 15 at 12:10 JFL 16k

2

votes

1

answer

49

views

Why can my device not get an ip from DHCP in a network with 2 VLANS of which one has DHCP?

vlan ipv4 dhcp

modified Jun 19 at 1:11 Martin Schröder 135

1

vote

2

answers

46

views

EIGRP advertising of routes for other networks behind us

cisco routing eigrp

answered 21 hours ago rnxrx 5,474

1

vote

2

answers

52

views

IPSec Tunnel Mode

network security ipsec

answered Jun 15 at 15:07 Ron Trunk 52.4k

0

votes

2

answers

52

views

Possible typo in Tanenbaum's book about NAPT

routing ipv4 nat ip-address dnat

modified Jun 18 at 13:13 auspicious99 397

0

votes

1

answer

40

views

TCP/IP conditions to end an etabilished connection

tcp

answered Jul 7 at 13:06 Jeff Wheeler 1,226

0

votes

1

answer

49

views

Why does the Layer 3 switch drop the ping packet?

routing switch switching layer2 layer3

modified Jun 21 at 8:41 Ron Maupin♦ 80.6k

1

vote

2

answers

48

views

EVPN/VxLAN border-leaf question

cisco routing bgp network evpn

answered Jun 27 at 1:22 rnxrx 5,474

0

votes

2

answers

29

views

Is it possible to completely mask an IP address to a point where no IP address can be detected yet an active connection is live?

ip vpn network security

modified Jun 26 at 7:06 JFL 16k

0

votes

2

answers

47

views

EIGRP route redundancy in a ring topology

cisco eigrp topology redundant-routes

answered Jun 30 at 19:00 Ron Trunk 52.4k

0

votes

1

answer

75

views

How to check cable without ping?

ping cable icmp packet-loss testing

modified Jun 28 at 21:03 Zac67 50.5k

0

votes

1

answer

45

views

How can i make every network on this topology speak together?

routing switch vlan

answered Jul 3 at 17:35 Ron Trunk 52.4k

0

votes

1

answer

34

views

JunOS: How to copy the config file to TFTP server?

juniper juniper-junos tftp

modified Jun 22 at 11:58 Jeff Wheeler 1,226

1

vote

1

answer

43

views

QoS Policy to not overutilize WAN link

cisco cisco-ios qos cisco-ios-15 h-qos

modified Jun 18 at 13:46 Mario Jost 1,426

0

votes

1

answer

55

views

Extra IPv6 Addresses - where are they coming from? [closed]

ip ipv6 ip-address dhcpv6

modified Jun 17 at 20:15 Ron Maupin♦ 80.6k

1

vote

1

answer

33

views

Confusion about MTU

layer2 ping icmp mtu

modified yesterday Ron Maupin♦ 80.6k

0

votes

1

answer

25

views

Unicast and Multicast MAC address convention

cisco mac-address layer2 networking osi

answered Jul 4 at 23:21 Ricky Beam 25.2k

0

votes

1

answer

52

views

Is it possible to setup IPsec behind NAT without port forwarding?

vpn networking ipsec pfsense-2

modified Jun 26 at 7:38 Zac67 50.5k

0

votes

2

answers

39

views

Diffie helman Agreement on Prime Number and Generator

layer4

modified Jun 22 at 16:14 Eddie 12.5k

0

votes

1

answer

39

views

i am so curious about naming IEEE standard network,like why do we use “802” these three numbers? [duplicate]

network ieee-802.11

modified Jun 27 at 16:24 auspicious99 397

1

vote

2

answers

30

views

Is the outgoing interface of a router in the same Subnet as the Incoming interface of the NEXT HOP router?

router ipv4 arp layer2

modified yesterday Ron Maupin♦ 80.6k

0

votes

1

answer

48

views

Trunking multiple VLANs into a single trunk port on a 3650 Switch

cisco routing vlan packet-tracer trunk

modified Jul 2 at 23:20 LordVader 23

0

votes

2

answers

37

views

How to add multiple computers in cisco packet tracer?

cisco packet-tracer cisco-commands

modified Jun 19 at 6:43 JFL 16k

1

vote

2

answers

22

views

What is the need for the NEXT HOP coloumn in the routing table when we already mention the OUTGOING INTERFACE in another coloumn?

routing ipv4 layer2 layer3

answered yesterday Jeff Wheeler 1,226

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