Cisco 4431 License Activation
Jamie Swearengin
I have a 1GB connection from my DMZ network to the internet. It travels from the 1GB cisco switch to the 1GB Cisco 4431 router and then into the internet connection. I have this on 2 different sites. One of my sites is ok and i can get download speeds of up to 800mb. But the other site is only getting around 400mb.
It means the total throughput in both directions can not exceed 1Gb/s. So you could download 800Mb/s and upload 200Mb/s and be ok. Just the some of the up and downstream can not exceed 1Gb/s at any particular moment in time.
So we're finally replacing an old Cisco 2801 router with a fancy new ISR 4431. However we've been caught out, the old 2801 had access vlans assigned to physical interfaces and it seems this is a no-no on a 4431.
Looking at this comparison model it says no to switch module but there not always accurate I would check with the supplier you got it from ask them are there l2 modules available for this switch , other option push the vlans back onto a layer 3 switch and route between switch and router or use old method router and stick setup with l2 switch
I see where the url referenced above shows N/A for switched Ethernet ports for the 4431. However, as you apparently noticed as well, other documentation shows the NIM-ES2-4 and NIM-ES2-8 supported in the ISR 4431.
I have a similar situation. I need to create L3 vlans on cisco isr 4431. My uplink is a switch and my down link is also a switch so in this case the router on stick method is going to work? Or what other options i have. Also i have 2 ISR's in between on which i need to configure redundancy groups for HA.
I think you can do this using the Cisco Configuration Professional Application (you can review this link for your reference) -content/uploads/2016/04/Cisco-4000-Family-Integrated-Services-Router-Data-Sheet.pdf If your device has a service contrac you can download it from Cisco.
I have a similar problem on a 4221 router except I cant access the webui at all. I have entered the configuration as previously described. I purchased the routers as a replacement for our cisco lab but they came configured with SD-WAN so I reformatted flash drive and copied the downgraded IOS-XE to V16.6.3 and copied the NIM firmware files and rebooted. Everything works fine except when I try to access webui from IE 11 it just says ERROR 404 page not found. In the details it states that the web site can be reached but the page is not found. Could I have removed some files from flash when I formatted it and if so how can I get them back.
Got a pair of Palo Alto in HA active/passive mode. Need to configure BDI on the Cisco 4431 so as to team up two gigaethernet interface with a virtual IP address and maintain connectivity when active palo alto fail and it failover to the passive device
I replicate it on my GNS lab using IOS (BVI) and works fine with my OSPF and BGP, but most notes and examples I'm reading is between Cisco router and switch or cisco routers using dot1q encapsulations. Here is my desired result with the Palo alto acting as perimeter firewall and also participating in iBGP. Hope someone point me to the right direction for the desired result
Been a little while since I did this in IOS-XE, but you will need to build the bridge-domain on the ISR4K using a config that looks something like the following (excuse the syntax, as I am typing from my memory because don't have a chassis to try it out - and I have a brain like a sieve these days).
command does is when an ethernet frame arrives on the matching sub-interface it will pop 1 VLAN tag and the "symmetric" part of the command tells the box to push 1 dot1q tag in the egress direction (the tag matching the VLAN-id in the encapsulation command).
If you have a bridge-domain or XConnect where the ingress and egress interfaces use the same VLAN tag then you don't actually need to pop or push any tag as the frame enters and leaves the box because the same dot1q id is valid on both access-circuits...............however, if the dot1q tag on each access-circuit is locally significant (ie you need to do a translation of VLAN-id between ingress and egress links) then you need to get rid of the "old" tag and replace with the "new" one. Similarly, a Layer3 bridge-domain interface does not understand VLAN-tagging and expects to receive/transmit everything as an untagged frame and so if your access-circuits are forwarding the frames onto a BDI then you have no option but to remove the dot1q header upon ingress, hence the use of that command.
I've got a new Cisco ISR 4431 Router running IOS XE 03.13.02.S and IOS 15.4(3)S2.WAN connection is a Metro Ethernet circuit delivered over copper and ISP has requested that we force the port to 1Gbps Full-Duplex. Our internal network is all using default auto-negotiate gig port settings.
Strange thing is that with the force 1G Full WAN port, the interface appears to have flow-control (802.3x pause frames) enabled and I can't figure out a command to disable flow-control on the port. On my INSIDE (negotiation auto) port, flow-control is disabled which is what I've seen as the default ethernet port setting in other Cisco routers. See the following port status samples for details:
Note that "flow-control is off" for the auto-negotiate LAN port, but "flow-control is on" for the force-gig-full WAN port. Neither port has a command applied directly related to 802.3x ethernet flow control. In my attempts to google for a solution, I saw suggestions for a "flowcontrol" and "negotiation forced" IOS interface commands. Neither of these commands was available on the CLI of my 4431 router. Maybe they were for different Cisco hardware, interface type, or software release?
If you have any suggestions for how to disable this please share here. I can always leave it on, but if the ISP has it disabled on their end then I should match by disabling 802.3x pause frames on mine.
Rather than disabling Auto-Negotiation, the following behavior is suggested in order to improve interoperability with other Auto-Negotiation devices. When a device is configured for one specific mode of operation (e.g. 1000BASE-X Full Duplex), it is recommended to continue using Auto-Negotiation but only advertise the specifically selected ability or abilities. This can be done by the Management agent only setting the bits in the advertisement registers that correspond to the selected abilities.
We currently use PRTG or monitoring and for some netflow. However we re trying to monitor a Cisco 4431We have it in house to test before we roll it out to site, Im seeing the netflow stats output on the router using the
show flow monitor IPV4_monitor cache command
However cannot seem to get it to the output on the sensor. Below is my current config:
Hi James,
Are you using the latest PRTG version (18.3.44.2054 as of today)? Since we had a bug in PRTG causing the sensors not to work properly. Please also ensure that flows are arriving (with the sensors being paused) via our NetFlow Tester.
I've a similar problem regarding the visibility of tcp flags and forwarding-status. I can see the fields that appear in the flow custom sensor how IP, Port, protocol, and others, but I didn't find an option to view the tcp flags and forwarding-status. can you help me?
Cisco announced end-of-sale and end-of-life (EOL) dates for select ISR 4400-series models, including the ISR 4431. Its Cisco-recommended replacement option is the Catalyst C8300, which offers some improvements over the ISR but still suffers from some management, automation, and scaling limitations. However, there are other options on the market that fill these gaps with secure, vendor-neutral, all-in-one branch networking solutions. This guide compares Cisco ISR 4431 EOL replacement options and discusses the advanced features and capabilities offered by Cisco alternatives.
c80f0f1006