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.
43
questions with no upvoted or accepted answers
7
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0
answers
750
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VirtualAccess Behavior with PPP
A small ISP I provide service for has recently been consolidating their equipment. One of their small branches only has a handful (5 or so) of users receiving their internet through a router, a Cisco ...
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6
votes
1
answer
274
views
Juniper ERX 310 traffic not going more than 710 mbps?
We have a Juniper ERX 310 configured as B-ras, as per specifications of the router, we should be able to terminate 8000 PPP sessions, but we notice that traffic on the router interface not going more ...
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5
votes
0
answers
294
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ASR920 - port Te0/0/3-tefp1 is not a router port on Vlan 217
When I enabled debugging:
PIM#debug ip igmp snooping router
I get in logs:
Mar 30 15:58:36.275: IGMPSN: router: port Te0/0/3-tefp1 is not a router port on Vlan 217
Configuration for interfaces:
...
- 91
3
votes
1
answer
306
views
Cisco ISR Zone Based Firewall dual stack not matching returning traffic for ipv6
I have a bit of a problem with my Cisco 1921 ISR config. I have ipv4 (obviously) and also native ipv6 connectivity in my home lab. I am trying to set up the zone based firewall. With ipv4 traffic, the ...
- 151
2
votes
0
answers
318
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Why can't i reach devices in the other network?
I have 2 networks and want to connect them with each other. It should be possible that all devices in network A can communicate with devices on network B and other way round. 1 network is "managed" by ...
- 219
2
votes
0
answers
47
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How to recover/reset password on Ascend/Lucent SuperPipe 155
I am trying to set up an Ascend/Lucent SuperPipe 155 ISDN router that I don't know the password to. I need to recover or reset this password before I can use the router. I found a reset procedure on a ...
- 181
2
votes
0
answers
1k
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AAA - IP HTTP server: local authentication and authorization
We configure AAA on router for the Telnet/SSH access. We activate HTTP on our router to our provisioning tool. The provisioning tool needs to retrieve information and execute some command on the HTTP ...
- 2,008
1
vote
1
answer
59
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CISCO cellular Router cannot reach network via my PC
I configured the cellular and my router is connected to the internet ping (5/5) Success
but I still cannot access the internet via PC
Here is my running-conf
Current configuration : 2271 bytes
!
! ...
- 11
1
vote
0
answers
118
views
Default admin deleted. Cant access CLI on Palo Alto but have access to GUI
I accidentally deleted the default admin for CLI on Palo Alto and now I can't log in. I have access to the GUI. I don't want to blow the image. Any ideas?
What I have tried:
I created a new superuser ...
- 111
1
vote
0
answers
72
views
Mistakenly added switch configuration on Cisco router 2951 so now it is showing gibberish data on CLI
I have Cisco 2951 router in which my colleague mistakenly uploaded switch configuration from tftp server. Now it is showing gibberish data on CLI when it boots up. I tried to get into the ROMmon mode ...
- 21
1
vote
0
answers
168
views
ASA - communication between 2 tunnels
I have two IPSEC tunnels with an ASA in the middle
Site A - 10.20.4.0 /24 (65.176.80.84)
Site B - 192.168.142.0 /24
ASA - 10.99.206.0 /24 (95.12.22.33
Site A - 10.20.4.0 /24 can reach the ASA and ...
- 11
1
vote
0
answers
359
views
How Cisco Line Protocol works
How do Cisco Line Protocol works ?
I could read this: https://www.cisco.com/c/en/us/support/docs/content-networking/keepalives/118390-technote-keepalive-00.html, about Ethernet Interfaces keepalive ...
- 1,085
1
vote
0
answers
1k
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Why do the tunnel protocol on these two router show different values
Two routers R1 and R2 have a tunnel built between them in the 103.103.103.0/24 network. The end point of the tunnel are 75.75.75.2(on R1) and 76.76.76.2(on R2).
Can anyone explain why does the Tunnel ...
- 55
1
vote
0
answers
498
views
Cisco IP SLA HTTP request with frontdoor VRF
I am trying to use a IP SLA for HTTP on my Cisco ISR 4321 router to check if a website is reachable. The challenge is that I need to do that in a frontdoor VRF. I have configured
ip name-server vrf ...
- 1,059
1
vote
0
answers
88
views
traffic of AF41 marking under interface
I have used port-queue commands most of the time to check traffic status under BE, EF, AF4. But I haven't found command to check for AF41 to AF42 on Huawei VRP or cisco IOS.
How can check traffic of ...
1
vote
0
answers
294
views
Cisco Asr1001 not able to receive 2048 macs (arps) in a sub-interface
I´m Brasilian, so excuse me any gramar error.
I have a cisco router ASR1001 (IOS XE Version: 03.08.01.S) and I need to connect it to a service provider running BGP ipv4.
This service provider gave me ...
- 11
1
vote
0
answers
115
views
Firewall/Router not translating correctly
I am currently having trouble gaining internet access from the PC. Any suggestions or advice would be most welcome :)
In order to diagnose a much larger issue, I have scaled my lab configuration ...
- 315
1
vote
0
answers
207
views
BFD support for OSPF vyatta 6.2?
Is it possible to get support for BFD for OSPF on vyatta 6.2?
I cannot find any information about it on the internet. The only thing I've seen is that the support is available on Brocade Vyatta 5400 ...
- 183
1
vote
0
answers
449
views
wpa-aes EAP-peap authentication problem
I'm trying to connect ubiquity NanoStation M2 as Station/Router mode to a hotspot that I believe has WPA/AES security and EAP-PEAP for auth.
I have tested the username and password from my laptop and ...
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1
vote
1
answer
407
views
Configure E1 CAS signalling on a 2851 router
I have a 2851 VoIP router (CME) with four E1 ports.
One port is configured as normal E1 PRI, and it is connected to PSTN.
I want to configure another E1 port as a CAS signalling E1.
I need to be ...
- 111
0
votes
1
answer
42
views
dot1q L3 router sub-interfaces and L2 switch ports
I have a router with multiple L3 sub-interfaces. On the other side I have a L3 switch (Nexus 9K) that I'd like to have multiple hosts that are on the switch route their traffic to one of the router ...
0
votes
0
answers
50
views
The use of VRF Lite
I have a quick question about VRF Lite.
So I understand that VRF is a technology which allows the router to build multiple virtual routing tables which divide the network on L3 with each VRF table ...
- 783
0
votes
1
answer
75
views
Communication between hosts on different local networks
I understand how NAT works in case of communication between one, local host and a server with specific public IP address. The host is sending a request, it pushes the packet with destination IP ...
- 11
0
votes
0
answers
86
views
Why Fast Ethernet port in Cisco Packet Service is always down?
I built a simple network simulation with Cisco Packe Tracer. I am not able to understand why fast ethernet port Fa0/0 on server Gmail and correspondent port on Router2 are always down. I checked and ...
0
votes
3
answers
122
views
Direct connection slower than via switch
My office ISP provides a 1 GBPS connection. When I connect my laptop directly to the router provided by the ISP, and connect to fast.com, I get a speed of approximately 100 mbps.
Our office network is ...
0
votes
0
answers
17
views
In MPLS RSVP how would methods of reservations like Wildcard-Filter, Fixed-Filter method, and Shared-Explicit method be explained in simpliest terms?
More specifically I do not understand what is concedered by "transmitter described with wildcard character" in Wildcard-Filter method in RSVP? How is reservation done with this method? What ...
0
votes
0
answers
21
views
How is Control plain in MPLS used for creating label table, and IP routing table?
How is Control plain in MPLS used for creating and maintaining label table, and hold protocols for creating and maintaining IP routing table? Is IP routing table in MPLS located in Customer edge ...
0
votes
0
answers
40
views
Wireshark filtering, wpa2 handshake type value and other types
I am capturing a wpa2 handshake with wireshark, and there is the type value of 03 which is a key I wonder if this type is constant for wpa2 handshakes, also the value of other types, if there were to ...
- 101
0
votes
0
answers
38
views
Is it possible to set maximum 32 PAT translations per global ip address?
So basically I'm trying to configure a cisco router (c7200) to use PAT with a pool of global addresses, and each global address should only support a maximum of 32 private addresses.
I've been ...
0
votes
0
answers
60
views
Cisco 2960 and Cisco 871 - no connectivity on non-default vlans
Unable to get internet connectivity from non-default vlans.
Suspect router config is not adequate
Five vlans created on 2960 (10,20,30,40,50)and Gig port 0/1 set to trunk.
Port f0 on router which is ...
- 101
0
votes
0
answers
757
views
No Voice commands on cisco router
I cannot find voice commands on my router,
I have licenced it but no voice commands or sip are found
Its on packet tracer.
Cisco router 2911
Thank you
- 1
0
votes
0
answers
562
views
Can ping from VPC 1 to router and VPC2, but can't ping from switch to VPC2 or router
I have a simple, linear topology in GNS3 that goes like this.
VPC1 > Switch > Router > VPC2
I have the default static IP Routes on the router set to 0.0.0.0 0.0.0.0 Ethernet0/1 and Ethernet1/...
- 135
0
votes
0
answers
57
views
How is it possible that CSMA/CA works in areas with a lot of users within a small radius (e.g. rallies, concerts, etc.)?
My understanding of CSMA/CA is that devices listen until a Wi-Fi channel is idle before sending packets. If a collision still happens, then the devices waits a random interval before attempting to ...
- 1
0
votes
0
answers
55
views
Dual Juniper MX80 problem
We have 2x Juniper MX80 routers with only one currently being actively used. Second one is waiting to take over in the event of disaster. We also have two ISP's that deliver network to our MX80.
We ...
- 1
0
votes
1
answer
650
views
Duplicated Vlan ID
I have one flat network with our data center and it is causing as a lot of issues, so i had to design a new network to separate the buildings from the data center, when I designed the new network i ...
- 99
0
votes
4
answers
360
views
Multi LAN network does the main router to the internet need to be in its own subnet?
I have to design a network where there are 4 within which are different number of VLANs with varying number of hosts per VLAN depending on the building.
My confusion lays in the main router, does it ...
0
votes
0
answers
960
views
when to disable CEF on an interface
i am currently learning about CEF and i came across the command "no ip route-cache cef", which i do understand what it does, essentially, it enables Fast-switching/process switching on an interface.
...
- 327
0
votes
0
answers
183
views
Cannot create connection between two routers in same VLAN via switch
I currently have a Cisco 2960-24TT switch (switch1) and a Cisco 1841 router (router1) that form part of my core network connecting other VLANs and devices. The two ports on router1 have been ...
- 280
0
votes
0
answers
388
views
Cisco 1841 stuck on boot?
I found an old Cisco 1841 router and decided to boot it up to play with it a little. Everything seemed to be going ok but I guess something interrupted the boot.
Last line is
%SYS-6-...
0
votes
1
answer
13k
views
Huawei Router Telnet and SSH configuration - Authentication
I am following Huawei user guide to enable telnet server and telnet service to a port. However, whenever I am trying to do a telnet, I see this error and the connection times out -
HUAWEI %%01SOCKET/...
- 325
0
votes
1
answer
249
views
How to get Adtran TA5000 23 firmware information with an SNMP request?
I'm looking for any SNMP request that I could use through a Linux terminal to get the firmware information of all our ADTRAN DSLAMs that we currently have in the field(there are close to 18,000).
I ...
- 1
0
votes
1
answer
657
views
Cisco ASR1006 Power usage
Hello everybody I hope all is well.
I was wondering if somebody can help?
I am trying to find a command to run for the power utilization on a ASR1006 using the following version of IOS-XE;
Cisco ...
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-1
votes
1
answer
46
views
Apply Interface Default Gateway to Entire Device
I feel there may be a very simple term for what I trying to do, but I'm not sure what it is, and it is difficult to search for it in concise words.
The shortest description I can come up with: "I ...
- 1