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.

39 questions with no upvoted or accepted answers
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9
votes
1answer
472 views

How to control unwanted UDP traffic (Broadcast & Multicast) on Cisco Router 2911?

Please suggest, we are getting UDP traffic either broadcast or multicast in router 2911 which cause 95%+ utilisation of the router. And we got error in link and business impact due to this. Company ...
6
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0answers
541 views

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 ...
5
votes
1answer
498 views

Time Cisco Router reload not always mentioned

Im trying to measure our cisco router availability data based on downtime happened. I assume from show version, the time mentioned in tag "System returned to ROM" is when reload started, and next line ...
5
votes
1answer
244 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 ...
4
votes
0answers
191 views

Need to configure site to site SSL VPN between two Cisco routers

I would like to configure site-to-site SSL VPN between two sites. I originally set up an IPSec VPN between the two Cisco routers and found I was only getting 10 percent of the available bandwidth. ...
4
votes
0answers
198 views

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: ...
3
votes
0answers
115 views

Is this a valid OSPF topology?

In the following topology: every Backbone router is an ABR. Router 2 belongs to three different areas, area 0, area 1, and area 4. is this a valid topology for OSPF ? it works as expected and it ...
3
votes
0answers
1k views

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
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0answers
23 views

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 ...
2
votes
0answers
164 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 ...
1
vote
0answers
39 views

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 ...
1
vote
0answers
206 views

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 ...
1
vote
0answers
222 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
vote
0answers
63 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
0answers
181 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 ...
1
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0answers
109 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 ...
1
vote
0answers
197 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 ...
1
vote
0answers
124 views

Traceroute probes

In traceroute, when a * is recieved, it could mean the router didn't reply due to various reasons- either the router is busy processing other packets or ICMP is blocked. I think few ISPs configure ...
1
vote
0answers
353 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 ...
1
vote
1answer
312 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 ...
0
votes
2answers
23 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
1answer
19 views

How to enable Inter-VLAN multicast traffic on a layer 3 Siemens RX1510 Network Switch using IGMP?

I have a single Layer 3 Siemens RX1510 network switch split into 4 separate VLANs on different subsets. Name | Gateway | Subnet VLAN1 | 198.97.100.123 | 255.255.255.0 VLAN2 |...
0
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0answers
24 views

Cisco Router Interface Connection Problems

I am new to networking and am configuring, I am trying to setup my connections in packet tracers for 3 different routers to talk to each other over Serial ports as attached. However, I did notice ...
0
votes
2answers
132 views

Routing Table Settings To Access An Internal Network Through VPN

I have a remote computer behind a VPN (which I have no control of). The IT team of the remote factory wanted me to install Palo Alto Networks' Global Protect program to access the VPN, which is ...
0
votes
0answers
70 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. ...
0
votes
0answers
57 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 ...
0
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0answers
25 views

CISCO Packet Tracer

Does Cisco Packet Tracer support config memory and config network command? If no, then do enterprise routers still support it?
0
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0answers
101 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
0answers
28 views

what is difference between main ring and sub ring in ERPS?

According to my knowledge , we can configure multiple ERPS rings in service based. But there is a concept of main ring and sub ring.Please explain significance of each.
0
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0answers
70 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 ...
0
votes
0answers
220 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 ...
0
votes
2answers
504 views

Slow performance with Cisco Comcast Business router with static IP address

20I have a server with a static IP address connected to a Comcast Business router (Cisco DPC3941B). I also have a second machine directly connected to the same router. It gets assigned a NAT address ...
0
votes
0answers
11k 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/...
0
votes
0answers
3k views

ASR1006 Link Down Due to Remote Fault

We have 10G fiber running since 1 year but today I have migrate that same link to ASR1006 and I am seeing following error, what could be the problem? Oct 7 17:29:48.211: %IOSXE_SPA-6-UPDOWN: ...
0
votes
1answer
98 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 ...
0
votes
1answer
506 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 ...
-1
votes
2answers
331 views

how to make multiple subnet able to use one resource without being able to connect to each other in any way

i`m trying to connect multiple subnets to one web server but these subnets should not be able to connect to each other.i cant make any changes on these subnets. I just have a lan cable from each ...
-1
votes
1answer
568 views

Two routers connected to a switch= same IP host address?

I have two routers, named Router0 and Router1, that are connect to a switch on ports FA0/1 and FA0/2, respectively. Now lets say this network has an address of 201.201.201.0/24. Would the IP host ...
-1
votes
1answer
139 views

How can I configure a router to forward an incoming hardcoded IP address to a named DDNS address?

I have an IP telephone but the IP address can only be specified explicitly, there's no way to enter a host name. The problem is that the IP address of the host name can change. Two possibilities ...