Routing

I did upgrade to version of IOS cat4000-i9k91s-mz.122-18.EW2.bin to cat4500-entservicesk9-mz.122-52.SG.bin at a catalyst 4507r engine IV.Before i could to execute:ssh 1.1.1.1, without problem.But after upgrade i can't do that.In catalyst 4507r:---...

Hi all,we have CISCO2811 router up and running and routing 4 networks, but for security reasons we bring second one for swap replacement spare part.Point was to copy IOS image and configs from old one to new one and in case of failure quickly replace...

Hi,I've been having major problems creating new tunnels since I upgraded my ASA5525-X from version 9.4 (4) 34 to version 9.8. (4) 22, all the tunnels I created before the upgrade continue to work fine.I give you an example of a tunnel that doesn't wo...

Hello, I have  some cisco routers connected with a central cisco L3 switch i.e. cisco 3750x switch at a remote location. these routers being managed by different service providers; i don't have any access to log onto those routers. I need to know the...

Hello - What is the best industry practice to keep watching on the PKI Certificates in the Cisco Routers?In my setup we have 500+ Routers with PKI based IPSEC tunnels. We want to proactively monitor these Certificates and take action before the expir...

I'm having issues with a basic PIM setup in my predeployment prod environment.  In my lab everything worked fine. Setup is a hub/spoke wan with multicast endpoints at each spoke.  Wan is 100 Mb tagged ethernet links.  Lab has a C3825 at the hub (also...

i have a 2921 router and a 4431 router. both of them have the vty config below.  line vty 5 15session-timeout 5access-class Internal in (the 4431 has a "vrf-also" here)exec-timeout 5 0transport input ssh Standard IP access list Internal10 permit 10.0...

Hi allWe have a global provider for our mpls, in some countries they use third party local providers to the last mile.we have our CE router on some sites that plugs into a third party router on site, sometimes sdsl, which then links it to the PE, our...

Hello. I'm pretty new to multicast, but I've been thrown into a pretty big network that recently replaced a pair of old catalyst switches with a pair of nexus switches using a VPC and I'm hoping I'm just missing something simple. Through a lot of tim...

I'm trying to set up an Internet filter on the RVS-4000 router but am having problems getting it to work ("Internet access policy" section within "Firewall" when you log into the router administration from a web browser).Here's a screenshot of my set...

I have an environment with a catalyst 9300 as a core L3 switch.  On this switch, I have an SDWAN router, and an MPLS router.  All of my internet traffic goes out through the SDWAN router via a static default 0 route.  All of my RFC1918 addresses go t...

I have a private network, and I need to let one IP in that private network map to an IP on the public network.  for example 172.16.1.10 needs behave like IP A.B.C.D on the public network.Normally, I would just add an interface on the system that was ...