First, we’ll look at the settings, then we’ll look at how to save the packet capture to the router, and finally, we’ll look at streaming the packet capture to a PC running Wireshark. The appliance then boots with a minimal basic configuration, and crucially for our needs, bypasses the unknown passwords allowing us in to reconfigure it. This tutorial will only cover the Packet Sniffer tool found under the main Tools menu. We then change the configuration register, to force the appliance to ignore it’s saved config. You can also double-click the tcpdump capture file to open it in Wireshark, as long as it has the. On the added line, write there a name of the filter (for example MikroTik sniffing) and set udp port 37008 as the filter. Start Wireshark, then import the tcpdump captured session using File -> Open and browse for your file. Click on + button to add a new line to the list. It will open a new window with capture filters. In brief, this process involves booting the appliance, and then interrupting the boot process part way through. In Wireshark menu, click on capture and then select capture filters. Make sure you dont fill up the disk in Astaro though. Or you could run tcpdump on Astaro, dump to files, and scp them to a workstation with Wireshark. Although, as the configuration that’s already there was of no use to me, I just removed the config entirely. Or you could use a span port on a switch, or put a hub between the WiFi router and the firewall, and sniff from there. WIRESHARK PACKET CAPTURE ON ROUTER CODESo, I needed a way to get into the ASA, and reset the password. Here is how to perform a packet capture right on the router and then export the capture to Wireshark for analysis. EPC is supported in ISR and 7200 routers, in code releases 12.4(20) T and later. So I had a perfectly functional firewall, but no way to reconfigure it to my needs. WIRESHARK PACKET CAPTURE ON ROUTER SERIESByTamara Tangney, CCNA This post is part of a series on configuring Cisco ASA 5510 firewalls The scenario: I recently acquired a used ASA 5510 from another internal department, but the login details had been lost along the way.
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