About ronit

ronit · 11-02-2022

Saw a very curious issue today. Our estate runs Firepower 1120s in ASA mode running firmware 9.14.2.15. We found an ASA with firmware 9.16. Strangely, the 9.16 firmware was nowhere on disk0:, but after each reboot, the boot would persist to 9.16. We...

ronit · 10-20-2022

We have a very basic Inter-Vlan routing setup on Cisco IE2000 switches. Devices in each Vlan can reach their respective gateways and route between each other. Now, the problem is, some devices on Vlan 161 do not support configuration of a default gat...

ronit · 09-27-2022

What is the best practice when monitoring Cisco ASA Firewalls (ASA5525-X or FPR1120-ASA) configured in Active/Standby or Active/Active HA? If we configure them as separate hosts in our SNMP software using their interface IPs, everything is fine till ...

ronit · 08-08-2022

So we use a Cisco DMVPN setup with 2 Hubs and multiple Spokes. We use OSPF for routing over the tunnels. Currently, everything is working well. However, I notice that each Spoke is load-sharing traffic to the Hubs via both Hub routers. There's a ...

ronit · 07-06-2022

We use 3rd party SFPs on the ASR920 and the alarm thresholds in "show interface transceiver detail" doesn't match Cisco SFP specs or the specs in the 3rd party SFP datasheets. The question is, does the router get the alarm threshold information from ...

ronit · 11-03-2022

I can confirm the configuration register is 0x1, I double checked. I didn't check "show bootvar" and the device is now in production. Is the behaviour that I saw expected or is it wrong?

ronit · 10-30-2022

Looks like the vendor had tested this with switches other than Cisco and they seem to respond via Proxy arp to arp probes, too.

ronit · 10-30-2022

Looks like the forum won't let me attach pcap files

ronit · 10-27-2022

Good news. The vendor released new software which populated the "source address" field in the ARP probes, turning them into ARP requests. Once this was done, the Cisco IE2000s responded back with proxy-arp responses and everything is now working well...

ronit · 10-25-2022

I will try to get this information

Member Since	‎08-17-2018 12:54 AM
Date Last Visited	‎02-15-2023 11:18 PM
Posts	68
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Firepower in ASA mode ignores boot statement

Proxy-Arp on Cisco IE2000

SNMP Monitoring of Cisco ASA Firewalls in HA

DMVPN Hub Primary/Secondary

3rd party SFP reporting incorrect Alarm Thresholds on ASR920

Re: Firepower in ASA mode ignores boot statement

Re: Proxy-Arp on Cisco IE2000

Re: Proxy-Arp on Cisco IE2000

Re: Proxy-Arp on Cisco IE2000

Re: Proxy-Arp on Cisco IE2000