Network Engineering Stack Exchange is a question and answer site for network engineers. It only takes a minute to sign up.

Sign up to join this community
Anybody can ask a question
Anybody can answer
The best answers are voted up and rise to the top

Top Questions

0 votes
0 answers
12 views

Technology to accepts transparently tagged/untagged frames on an unconfigured AC port

0 votes
1 answer
42 views

Why there is not layer3 in Mark's laptop?

0 votes
0 answers
12 views

Over internet connection of two host with Dynamic Public IP Addresses [closed]

0 votes
0 answers
14 views

MAC Table ,Hash Function, Ethernet [closed]

0 votes
0 answers
16 views

Network Protocols [closed]

0 votes
2 answers
20 views

wireshark is not capturing my target packets

1 vote
1 answer
27 views

What happens if the layer 2 destination MAC address mismatches?

1 vote
2 answers
35 views

Is it okay to not assign an IP address to the physical interface of router when used for "Router on a Stick"?

0 votes
0 answers
15 views

Why devices connected through Wi-Fi and Ethernet cannot reach each other? [closed]

0 votes
1 answer
40 views

policy based routing to send one host to a different internet gateweay

1 vote
1 answer
27 views

Why does TCP sender drop rate 50% on lost-packets?

1 vote
1 answer
47 views

How does QUIC provide delivery guarantee?

4 votes
2 answers
545 views

Why is a virtual MAC address needed in FHRP protocols?

0 votes
0 answers
19 views

How can I find or produce 60s style rack mount panels? [closed]

1 vote
1 answer
73 views

Hot potato routing topology

0 votes
0 answers
14 views

How can i add this Virtual machine to vlan? i need hep with configuration please [closed]

0 votes
1 answer
47 views

How to change the AS number without losing the old BGP configuration?

0 votes
1 answer
29 views

Can QUIC prevent DNS/NTP amplification for DDOS

0 votes
0 answers
17 views

ACL to allow just Internet access to include DHCP and DNS [closed]

0 votes
1 answer
37 views

Routing question

0 votes
1 answer
34 views

Naming ASN something else than "default", Cisco IOS XR

0 votes
0 answers
13 views

Sophos XG Virtual Host Load Balancing

0 votes
0 answers
26 views

(Wireshark) how to filter TCP connections

15 votes
5 answers
4k views

Why do we need ports with IPv6?

5 votes
2 answers
578 views

Can a jumbogram (giant data packet) be used at a large scale (in WAN for example)?

0 votes
0 answers
14 views

Cisco C3064PQ-10GX and DHCP Relay issue

0 votes
0 answers
18 views

Subnetting within an existing Production subnet [closed]

0 votes
0 answers
19 views

Difference between host-to-host and process-to-process communication [closed]

0 votes
1 answer
42 views

How does OSPF know the cost of the interfaces between the router and the destination network?

3 votes
1 answer
132 views

A question about DR/BDR routers in OSPF

3 votes
2 answers
101 views

Show port on Cisco switch that mac address is being dropped on

1 vote
2 answers
34 views

Why do 802.1Q trunk ports drop tagged frames with the same ID as the native VLAN?

4 votes
1 answer
340 views

Layer choice for OSPF

0 votes
0 answers
32 views

How to NAT a unicast address to a broadcast address?

1 vote
1 answer
77 views

Does each computer/smart phone use electromagnetic wave with different frequency to communicate when they're connected to a WLAN?

2 votes
1 answer
36 views

What is Ethernet MDI in the case of SFP interfaces

1 vote
1 answer
118 views

Can a switch fragment a jumbo frame?

0 votes
1 answer
19 views

Where are the GCP Firewall logs?

1 vote
1 answer
67 views

Cisco ASA not accepting external traffic without NAT configuration

0 votes
2 answers
75 views

can we use RJ45 with cat7 sftp?

0 votes
1 answer
19 views

iBGP running only between BGP border routers?

0 votes
2 answers
45 views

Adding switch to domain, do I need to use vlan

2 votes
2 answers
45 views

TCP MSS - Dynamic Adjustment

1 vote
1 answer
59 views

Private VLAN: gateway and DHCP for isolated VLANs over multiple switches (Extreme)

0 votes
1 answer
22 views

Many SYN_RECV connections in netstat [closed]

0 votes
2 answers
33 views

Cisco 2960-X IOS Version 15.2 can't use command access-session control-direction both

2 votes
1 answer
334 views

Palo Alto PA-3250 default credentials at PA-HDF login prompt (after factory reset)

0 votes
1 answer
37 views

In a PE-CE network, we would redistribute routes between BGP and IGP without `bgp redistribute-internal`. How does redistribution works?


Looking for more? Browse the complete list of questions, or popular tags. Help us answer unanswered questions.