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Top Questions

active 3 featured hot week month

2

votes

1

answer

95

views

Why are DHCP ACK and REQ messages broadcast in Link Layer?

dhcp protocol-theory

modified yesterday jonathanjo 4,442

0

votes

2

answers

41

views

Understanding how devices on a LAN/VLAN discover the existence of other local devices

network network-discovery

answered Aug 14 at 21:00 Marc 'netztier' Luethi 1,130

1

vote

1

answer

42

views

can single Ethernet mac handle two RJ45 ports?

ieee-802.3x

modified Aug 17 at 17:14 Zac67 18.4k

0

votes

1

answer

32

views

Do RIPE Atlas probes need a public IP address?

ip-address

modified 3 hours ago JFL 9,604

-1

votes

3

answers

40

views

Why do we need an ethernet MAC address? [on hold]

ethernet mac-address internet protocol-theory ip-address

modified yesterday Zac67 18.4k

0

votes

1

answer

38

views

LACP to Fix Switch Bottleneck?

switch ieee-802.1ax dell

modified Aug 15 at 19:36 Zac67 18.4k

0

votes

2

answers

48

views

EIGRP Routing Issues

cisco routing eigrp

modified 2 days ago Andrey Prokhorov 789

1

vote

1

answer

32

views

Change VLAN id in trunk

vlan trunk

modified Aug 16 at 19:17 Zac67 18.4k

2

votes

1

answer

29

views

Will this SFP Transciever run over OM1?

cisco fiber sfp

modified yesterday Zac67 18.4k

0

votes

0

answers

61

views

Sophos UTM WAN interface doesn't respond to ARP requests

routing arp vmware sophos

modified Aug 16 at 9:44 Astaar 101

0

votes

1

answer

35

views

Latency in Network [on hold]

cisco qos

modified Aug 15 at 16:59 Zac67 18.4k

0

votes

1

answer

26

views

RJ45 console cable specs

cable

modified Aug 14 at 15:25 jonathanjo 4,442

0

votes

0

answers

49

views

Different Source and Destination IP to and from ISP [on hold]

isp route

modified 2 days ago RickSanch3z 1

0

votes

1

answer

47

views

Partially Faulty QSFP+ breakout port - possible config error?

juniper juniper-junos

modified Aug 16 at 19:42 jackluo923 1

0

votes

1

answer

41

views

L2TP IPSec Remote VPN - Many users connecting remotely from same access

vpn ipsec

modified Aug 15 at 7:23 Martin Rosenau 372

0

votes

2

answers

30

views

Advice on potentially needed subnet expansions

subnet dhcp switching voip networking

answered Aug 14 at 23:12 batsplatsterson 236

1

vote

2

answers

30

views

How does the server know how to respond to a UDP packet? [on hold]

protocol-theory udp

answered 14 hours ago Martin Rosenau 372

0

votes

1

answer

38

views

Establishing connection between two 2 devices in 2 different subnets

vpn ping

answered Aug 16 at 5:29 Zac67 18.4k

0

votes

0

answers

35

views

TCP behavior upon failure: weird RTO timer and retransmissions [on hold]

tcp

modified 21 hours ago omuffat 101

0

votes

0

answers

35

views

+100

Cisco ASA context OSPF configuration issue

cisco switch cisco-asa ospf trunk

modified yesterday Datagram.Network 1,138

0

votes

1

answer

20

views

switch filter a frame

switch mac-address

answered Aug 15 at 14:00 Zac67 18.4k

0

votes

1

answer

32

views

How does a firewall receiving an image file approve it?

firewall

answered Aug 16 at 11:02 jonathanjo 4,442

0

votes

1

answer

32

views

Is it possible to remove/block a EIGRP neighbors connection via Switch?

switch eigrp

modified 6 hours ago Ron Maupin♦ 55.6k

1

vote

1

answer

24

views

Simple NTP question

cisco ntp

modified Aug 16 at 16:33 jonathanjo 4,442

0

votes

1

answer

35

views

Why is devices on Subnet 2 (Router 2) can access devices on Subnet 1 (router 1) but not vice versa? [on hold]

subnet

modified Aug 16 at 7:07 Martin Rosenau 372

0

votes

1

answer

27

views

Noob here with a network question [on hold]

network-access

answered Aug 14 at 23:20 Ross Clarke 1

0

votes

1

answer

21

views

Change firewall rules of a Cisco Router from network

cisco router firewall

answered Aug 16 at 15:39 jonathanjo 4,442

0

votes

1

answer

21

views

Network interface issues an ARP request to get the MAC address of an actively used gateway

router arp interface

answered yesterday Zac67 18.4k

2

votes

1

answer

16

views

Pseudowire and LSP

mpls mpls-tp

answered yesterday Ron Trunk 30.7k

0

votes

2

answers

26

views

How to connect Cisco Catalyst 2960G using a RJ45 Console Port

cisco cisco-catalyst cable linux

answered Aug 15 at 8:58 Marc 'netztier' Luethi 1,130

0

votes

0

answers

26

views

I believe my computer is blocked [closed]

ping networking

modified Aug 14 at 21:45 Bill 1

0

votes

2

answers

25

views

Network Packet that allows maximum throughput

protocol-theory packet-analysis packet-loss data transceiver

modified 2 days ago Zac67 18.4k

0

votes

0

answers

25

views

+100

is there a way to make subnetworks by user or user isolation on Algo VPN?

vpn subnet

modified 2 hours ago Angel Montes de Oca 1

0

votes

1

answer

18

views

How can I use a firewall as Internet Breakout?

firewall internet isp

answered Aug 14 at 11:28 Jeremy Gibbons 2,024

1

vote

1

answer

23

views

Create Accounting for Internet and merge ADSL, is there any way? [on hold]

cisco routing router vlan

modified Aug 17 at 19:56 Zac67 18.4k

0

votes

0

answers

22

views

Is it better to connect your WAN to Switch or to Router? [on hold]

switch router network security design

asked Aug 16 at 17:49 PhpNewbie 1

0

votes

0

answers

22

views

Direct wireless link, what better equipment? [on hold]

wireless

asked Aug 17 at 13:57 Rovann Linhalis 101

0

votes

1

answer

22

views

Separate network for test systems

firewall layer2 layer3

answered Aug 14 at 11:36 Jeremy Gibbons 2,024

0

votes

1

answer

22

views

Use one ip for multi VLANs in linux without netns and not act as a router

vlan linux

answered Aug 16 at 1:15 john 638

0

votes

0

answers

21

views

DHCP Doubts & Questions [on hold]

dhcp

asked Aug 15 at 12:17 Ethernet 5

0

votes

0

answers

21

views

Troubleshooting VPN

vpn

asked Aug 14 at 13:45 Bubbawny 1

0

votes

0

answers

20

views

Juniper Filter-Based Forwarding

routing juniper juniper-mx pbr

asked Aug 14 at 3:06 I. Shelkovnikov 1

0

votes

0

answers

20

views

How to implement Social WiFi? [on hold]

authentication mac-auth-bypass

modified Aug 15 at 12:08 Chaminda Bandara 158

0

votes

0

answers

19

views

Errors in my VLSM addressing scheme attempt? [on hold]

ip ipv4 subnet ip-address

asked Aug 15 at 22:12 Dave Irwin 1

1

vote

0

answers

19

views

Setting up a GPS TCP server [on hold]

router tcp route-server

asked Aug 17 at 12:39 Ammar Surti 6

-1

votes

0

answers

19

views

What ports does DHCP typically use other than 67 & 68 [on hold]

dhcp dns

asked 2 days ago iAMsecgeek 1

0

votes

0

answers

18

views

Block diagram for SDH hierarchy connecting two LANs [on hold]

network lan modem

asked Aug 17 at 9:34 Elisa Maria Alves 1

0

votes

1

answer

18

views

Connect office to multiple customer VPNs

routing vpn nat

modified Aug 14 at 18:23 Ron Trunk 30.7k

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