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.
1,604
questions
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 ...
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 ...
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?
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 ...
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
...
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 ( ...
-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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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=...
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 ...
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 ...