I applied the ACL to the external interface on my C8300 router and the internet access block. below is my acl i applied on the interface for in/out bound remark DIV 13deny ip any any option any-options log-inputdeny icmp any host 13.28.162.111 frag...
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Hello,I recently got an ISR 1121-4P and there is a MICRO-USB Console Port in it and I can't get an active console connection.I've already installed the USBtoSerial Console Driver on my device. The router is completely new and I also tried to factory ...
Hi,I work for an ISP which, like many others and amongst other things, provides fixed/dedicated public IPs via 1to1 static NAT through a Cisco Firepower ASA FW.I've had a customer of ours reporting the following recently:"The issue: We are seeing TCP...
My Cisco router has gone into continuous boot loop. Not able to enter ROMMON either.Can someone please help me?Product: Cisco ISR 1100 – C1111-4PROMMON Version: 16.12(1r)IOS Image: c1100-universalk9.17.12.x.SPA.binIssue Type: Boot loop / unrecoverabl...
For lack of better wording, how do I make a router invisible? I see the carriers do it all the time. When a tracert happens, I want no IP to show up but continue on so that it will eventually get to its destination.
as we know, when doing mutual redistribution with two or more routers, there will be loop if we don't use tag on one redistributing router and block the route learn back on the other. however, even without configuring tagging and blocking, IOS XE and...
Hi,At the VMware Workstation 17 player Virtual Machine Network Adapter settings, wether I used Bridged Mode or NAT Mode, the Cisco Modelling Lab 2.6.1+Build 11 is not displaying the ip address to access the CML User Interface. Please kindly help me o...
When merging two companies with private overlapping addresses … what are the options besides re-ip one whole company? Double nat? What else have you seen? Any cloud based solutions/services that can help in this setup?
in IOS XR, when you configure BFD in static route, there is multihop option as in 'bfd fast-detect multihop <source address>' however you can't configure destination as we can in IOS XE. the router uses the directly connected neighbor interface addre...
I'm having a very strange issue with a 3850 right now. We use 3850's as building routers on campus. Each building gets its own 3850 and then there is a variety of 4500, 2960X and 9300 switches deployed for layer 2. On each 3850 we have the traffic se...
Resolved! IP SLA Responder - Are all ports open?
Playing with IP SLA, I configured a udp probe with a random port 65051 on the other side I only configured "ip sla responder" and it started working... I changed the port a few times (63500, 64111, etc) and it continues to work, which raises a lot of...
Good morning Cisco Community, I feel like i am over looking something simple here. I've built a SVI and propogated it into OSPF on a L3 device. On one interface of that device there is a host connected through two cascaded layer two acces switches....
Trying to get into the C1111-4P router after powering on it can't find the IOS image and also I cannot get into ROMMON mode can you help please thank you:Rom image verified correctlySystem Bootstrap, Version 16.9(1r), RELEASE SOFTWARECopyright (c) 19...
What precautions should we take when we transit legacy network to SDWAN network ? how can we do it in minimal downtime ?how can we replace devices in minimal downtime in LAN network /DC network /WAN network ? precautions
I have a nexus switch 93180YC-EX.I'm getting below warning syslog message:%TAHUSD-SLOT1-4-BUFFER_THRESHOLD_EXCEEDED: Module 1 Instance 0 Pool-group buffer 90 percent threshold is exceeded! (message repeated 1 time)When I checked the resources usage, ...
