What is the difference between warning bit method and method of sending choke packets? Wherein both the methods deals by sending a signal that tells the transmitter about the congestion occurred in the sub-net ..read more

I am working with a Fortinet FG-60F firewall. It has 2 WAN sources and both have a maximum link speed of 100Mbps. Throughout the day, I am repeatedly getting downstream bandwidth spikes of 100Mbps+ on both WAN links: Our usage is not much at all. When I check my Fortiview sources, the bandwidth consumed by individual IPs is not more than 10Mbps: We are repeatedly getting connectivity issues and packet losses. Users are repeatedly losing their connections and pings are getting timed out. Please guide how do I find out what is causing this or consuming the bandwidth ..read more

Can we use Reservation protocols with fixed TDMA reservation channel? If yes, I am also not satisfied because I don't know why ..read more

I want to handcraft a tcp handshake. I want to control sending each packet of the tcp handshake. I tried it with scapy >>>syn_packet = IP(dst="<dst_ip>")/TCP(dport=80, flags="S") >>> send(syn_packet) But the server responds with a syn-ack on its own. Is there a way/tool I can control when to send the syn-ack from the server ..read more

Please advise, when reading the “Release Notes for the Cisco ASA Series, 9.17(x) ” I saw the following: ASA 9.14(x) was the final version for the ASA 5525-X" But the current version of our Cisco ASA 5525-x is 9.17(1) Do I understand correctly that you can continue to update the firmware, but the new functionality released later does not affect error correction in any way, only the numbers change ..read more

I have a SoftAP set up using ESP32-S3. Clean example from ESP-IDF SDK, no changes on my end. I also have a MilkV-Duo board running buildroot with RTL8188 network card over USB. Here's the state of things: ESP32 SoftAP: SSID: myssid Password: mypassword My phone (iPhone 8) can connect to ESP32 AP My laptop (Windows 11 Asus TUF F15) can connect to ESP32 AP MilkV-Duo can connect to my home network, my phone hotspot, etc MilkV-Duo won't connect to the ESP32 SoftAP wpa_supplicant.conf from MilkV-Duo: (I changed my actual passwords, don't worry) ctrl_interface=/var/run/wpa_supplicant ap_scan=1 up ..read more

I have a partially meshed OSPF network. Pings from A to a host in subnet B were working fine. However, when I added a new, distant subnet (subnet C), pings started failing for about 45 seconds. It's possible adding subnet C could offer a lower-cost route between A and B, but I'm confused as to why the existing route between A and B is disrupted. Wouldn't it be more efficient for OSPF to maintain the working route until the new calculations are complete? P.S. The OSPF network consists of routers from various vendors. ٰ P.S. In the topology, I've used the letters A, B, and C for simplicity. The ..read more

I have the situation where i have 3 connected routers (which are then connected to more routers). The left router is running RIPv2, the middle router is running EIGRP and the right router is running RIPv2. They are then connected to routers running their same protocol (the EIGRP-enabled router is connected to a bunch of EIGRP-enabled routers, etc. My question is how can i enable connectivity between the whole network. I tried enabling RIPv2 on the middle router and redistributing both RIP and EIGRP, and the routing table on that router looks good, but the other routers routing table hasn't cha ..read more

At the moment I am interested in the fault tolerance of the route to providers in Cisco ASA in multiple contexts. As I know, in one context you cannot track the route and change it, but the task is to switch between providers in case of unavailability. Accordingly, I want to select three interfaces, assign three different IP addresses from different providers and write a Python bot to track the availability of providers and change static routes. How good/stupid is my idea? What have you used in your work for fault tolerance? I want to find more solutions for myself that will help me move on. T ..read more

I have a modem connected to my raspberry pi eth0 port, and I'm sshing throuh wlan0. I added my own rule Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default 192.168.33.1 0.0.0.0 UG 600 0 0 wlan0 192.168.33.0 0.0.0.0 255.255.255.0 U 600 0 0 wlan0 192.168.100.1 0.0.0.0 255.255.255.255 UH 10 0 0 eth0 lz@raspberrypi:~ $ ip route get 192.168.100.1 192.168.100.1 dev eth0 src 192.168.1.100 uid 1000 as you can see, ip route get goes to eth0. I see nothing on My ..read more