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Questions tagged [router]

For questions about network routers, devices that forward data packets between computer networks, commonly at the network layer (layer 3) of the OSI model.

0 votes
1 answer
57 views

How can I ensure that NAT hairpinning goes through the gateway?

When I enable NAT hairpinning, will accessing LAN devices through the public IP go through the public network? After enabling NAT hairpinning and establishing a TCP connection, if the public IP ...
ishunsei's user avatar
1 vote
2 answers
126 views

Why are DNS packets processed by process-switched?

I have a question. Equipment: Cisco 2821 CEF is enabled on all router ports: sh ip interface | i CEF Post encapsulation features: CEF Packet Capture IP CEF switching is enabled IP CEF ...
Глеб Щеголев's user avatar
0 votes
0 answers
42 views

what do the two parameters SINR and RSRQ mean in 4G routers and what is the difference between them?

I want to know what do the two parameters SINR and RSRQ mean in 4G routers and what is the difference between them?
SEPEHR's user avatar
  • 1
2 votes
1 answer
148 views

which protocol is invoked first by routers ? routing (routing table) or ARP?

I have a question regarding the internet layer of the TCP/IP model: When a data frame is sent by a client to a server located on another network, we know that the routing tables and the ARP protocol ...
Ali's user avatar
  • 33
0 votes
1 answer
81 views

what happen to packets passing through switches and routers?

I am learning networks from hardware and software aspects. assume below scenario: we call computers with c prefix, switches with s and routers with r. all macs and IPs are summerized. c1 ip=1 mac=xx ...
user3840019's user avatar
0 votes
1 answer
133 views

Connect Router 4431 to pair Nexus 9k

I have to made the following setup, but I’ m not sure that is works Before scenarios that works Router over one link L3 connects to one Nk9 switch. On the Router side I have multiple subinterface ( ...
Mihai's user avatar
  • 1
-1 votes
2 answers
90 views

Can I get into configuration mode by command "config" instead of "configure terminal"?

I would like to ask: When I configure router or switch in for example Putty, can I get into configuration mode by command "config" instead of "configure terminal"? Or I need to use ...
Mirek's user avatar
  • 1
1 vote
2 answers
134 views

What is the name of the syntax for the "configure" interface?

When accessing routers/switches via ssh cli, I'm familiar with configure syntax but have never bothered to ask "what is it called?" As you might imagine, searches for router configure ...
Josh Hibschman's user avatar
0 votes
1 answer
56 views

What device to use as an intermediary " Wifi Router" for a subnet, plug-and-play architecture?

I am new to network architecture so I apologize in advance for any nomenclature errors. I have 50 IoT devices (running Ubuntu) that I want to stream significant data from. These devices are only ...
Michael Kaca's user avatar
0 votes
0 answers
63 views

noob learning cisco

I'm trying to teach myself how to use cisco devices. i was given an router, switch and firewall. so far i been able to set up vlan and have intra vlan routing working. My issue is having the switch ...
Stu Villanti's user avatar
0 votes
1 answer
40 views

Unable to configure Site to Site VPN between Cisco Router & Cisco ASA and permit SSH

I am performing configuration on Cisco ASA and Cisco Router from the packet tracer. I am attempting to allow the external network (172.16.22.100 255.255.255.0) to access the internal server which is ...
iloveearth_12345's user avatar
1 vote
1 answer
139 views

Are integrated networking devices, frequently called routers, of the switch type or of a router / NIC type?

Odom,Wendell-_CCNA_200-301_Official_Cert_Guide,_Volume_1.pdf : many SOHO Ethernet LANs today combine the router and switch into a single device. Vendors sell consumer-grade integrated networking ...
John Smith's user avatar
0 votes
1 answer
144 views

Switch ping to router with trunk port

If I have a switch port trunk directly connect to a router with the follow scenario below: -------- g1/0/1 (Trunk) g1/0/1 |------| |switch| Native VLAN 1 SVI=...
Andrew's user avatar
  • 103
0 votes
1 answer
50 views

2 Routers for PPPoE and NAT 5 Public IP [closed]

My ISP have provided me with 5 Public IPs. I tried to NAT these 5 IPs to our local server by using this setup. The primary router will be setup for the internet connection while the one-to-one NAT of ...
Renivle's user avatar
0 votes
1 answer
46 views

Protect public network with virtual firewall w/o control over the gateway

I have a public network, 123.123.123.0/28, and a local network, 192.168.1.0/24. My ISP gateway for the public network is 123.123.123.1. My virtual firewall and router (pfsense) is running inside ...
Demiler's user avatar

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