If the destination interface is an IPsec tunnel, FortiOS will encapsulate the full original packet in ESP, and then fragment the resulting ESP packet. The timeouts are quite sensitive and. Outgoing packets must not require fragmentation to a size less than 385 bytes. By continuing to use the site, you consent to the use of these cookies. Step-1: Open Sever Manager Dashboard and navigate to Manage → Add Roles and Features. While fragmented packets won't get by packet filters and firewalls that queue all IP fragments, such as the CONFIG_IP_ALWAYS_DEFRAG option in the Linux kernel, some networks can't afford the performance hit this causes and thus leave it disabled. The Fortigate will drop packets in case of RPF check failure (see related article at the end of this page Details about RPF (Reverse Path Forwarding), also called Anti Spoofing, on. The FortiOS/FortiAP solution to this problem is to cause wireless clients to send smaller packets to FortiAP devices, resulting in1500-byte CAPWAP packets and no fragmentation. Feb 1, 2022 · Hardware Acceleration. Answer: D Explanation:. This affected its placement in NSS' 2019. 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort. Step-4: Select a server from the server pool. This catalogue lists check plug-ins that are shipped with Checkmk. account not onboarded intune ram 3500 air mattress. Stronger encryption algorithms equals to lower MTU values. The IKEv2 protocol is a popular choice when designing an Always On VPN solution. The FortiGate unit automatically reassembles fragmented packets before processing them because fragmented packets can evade security measures. In some cases, hyperscale firewall CPU or host logging packets can be dropped, resulting in lost log messages and incorrect traffic statistics. This site uses cookies. binaural microphone for iphone; las vegas karting league; mirrored round dining table; cars under 10k; subaru m70; virgin vs chad female version; nhra. Protocol: The IP protocol number from the IP header. I need to see the dropped packets in real-time, to debug the FW rules. Both IP packets and TCP packets are reassembled by the IPS engine before examination. The device that dropped the packet will send an ICMP ' Destination Unreachable (Fragmentation was Needed and DF was set)' message back to the sender. C:\Users\ScottHogg> ping -l 1500 192. 100 Gigabit Ethernet implements full duplex point to point links connected by network switches. Attack types. Bug ID. The interdependency between MTU and IP MTU is very. To learn more about cookies, please read our privacy policy. Upgrade Path Tool. Click Rx Ring #1 Size and increase the value (The maximum value is 4096). Normally, ICMP echo-request and echo-reply messages are used to ping a network device in order to diagnose the. The final part is getting your network rid of fragmented traffic. Fortigate drop fragmented packets High density, non-blocking, wire-speed 10/25/40/50/100GbE packet capture with advanced traffic management capabilities for lossless monitoring of network traffic; Support for up to 432 ports of 100G and 1152 ports of 10/25G in a single non-blocking platform that simplifies deployment by providing higher density. The FortiGate will preserve the fragments as they are if the destination interface is NOT an IPsec tunnel. The fragmentation offset value for the first fragment is always 0. com -f -l 1472 and hit Enter. If your system is processing relative large amounts of fragmented packets, you can use the following command to improve performance by reassembling and offloading them using NP7 processors: config system npu config ip-reassembly. The following steps define a QoS Deployment Lifecycle: 1. > show counter global filter packet-filter yes delta . The IKEv2 protocol is a popular choice when designing an Always On VPN solution. pem 2048 -config openssl cnf. Sometimes, when we initially try to connect to the Global VPN Client (GVC) on a SonicWall firewall, the initial ISAKMP packet is fragmented due to its less size. This will capture any packets on any IP address for TCP (IP/6) but will ignore anything on TCP/22. txt) or read book online for free. Upgrade Path Tool. Tracerouting works because of the TTL value in the IP portion of the packet — not the ICMP, TCP, or UDP parts. The FortiOS/FortiAP solution to this problem is to cause wireless clients to send smaller packets to FortiAP devices, resulting in1500-byte CAPWAP packets and no fragmentation. Standard LAN NIC MTU = 1500. Although the IP specification allows IP fragmentation, excessive fragmented packets can cause some systems to. Captures show it is receiving a SYN packet and an ACK packet, but never receives a SYN ACK: Resolution Use the following command to configure the firewall to bypass asymmetric routing globally. 트래픽 조절 기능으로 Drop되는 패킷의 통계도 확인이 가능합니. Not allowing fragmented packets with different ECN values had resulted in some customers experiencing dropped packets. xshkurti Staff. Some instructions are required, such as whether to drop or. All googling, sniffing and diagnostic pointed to two things: - Check Pre-shared key. The following options are available for the ip-fragmentation variable:. To answer your first question if the DF bit is set from the source then the router will simply drop the packet. 0 Upgrade Path Tool 5. If i try on 11. foscam mjpeg stream url; sasuke makes sakura cry fanfiction; Newsletters; best reed diffusers for large rooms; free nativity knitting patterns to download. If ping does not return a reply, it means that the network communication is not established. Session key or IPsec SA key lookups then succeed for subsequent packets from the known session or IPsec SA. Anyways I'll guess I'll have to be including imgur. 7 release notes also apply to Hyperscale firewall for FortiOS 6. Not allowing fragmented packets with different ECN values had resulted in some customers experiencing dropped packets. HA mode, is using HA heartbeat interfaces to send hello packets, and is listening on its heartbeat interfaces for hello packets from other FortiGate units. Identity & Policy control; Network management;. The IKEv2 protocol is a popular choice when designing an Always On VPN solution. Brief IPv6 firewall filter rule explanation: work with new packets, accept established/related packets; drop link-local addresses from Internet (public) interface/interface-list;. Drop into CLI on the FGT and check what switches are connected by running the command get switch-controller managed-switch This command will bring back the names of the manged switches. Complete the configuration as described in Table 41. Default static route A default route defines where packets will be sent if no specific route for the destination network is listed in the routing table. Step 2 At the DOS Prompt type in ping www. The timeouts are quite sensitive and may require tuning to get best performance depending on your network and FortiGate configuration and traffic mix. To change the idle timeout via GUI: 1) Go to system -> settings. fortigate drop fragmented packets cx MRU: The Maximum Receive Unit (MRU) of PPPoE packet. Check Enabled Ingress Bandwidth Management. Tourist Information Center – Stara Zagora. If the original wireless client packets are close to the maximum transmission unit (MTU) size for the network (usually 1500 bytes for Ethernet networks unless jumbo frames are used) the resulting CAPWAP packets may be larger than the MTU, causing the packets to be. The TCP MSS=1460. account not onboarded intune ram 3500 air mattress. Most SonicWall firmware's will offer the ability to create a recursive rule and this is necessary for bandwidth management and ensure incoming RTP streams are given priority. The problem with fragmentation is that there are a number of exploits so it might be wise to drop all fragmented packets: R1(config-ext-nacl)#deny ip any any fragments RFC 3330 Address. Since packets arrive at random times, it is quite possible that a queue builds up at a router. Application hasync crashes several times. FortiOS will fragment a packet on sending if only all the . Upgrade Path Tool. config system interface. There are three ways in which a packet filter can be configured, once the set of filtering rules has been defined. Complete the configuration as described in Table 41. Packet needs to be fragmented but DF set. Drop the test packet size down (10 or 12 bytes) and test again. The default value is 1492. #define In March 2016, Amazon unveiled the original Amazon Echo Dot, which is a hockey puck-sized version of the Echo designed to be connected to external speakers due to the smaller size of the onboard speakers, or to be used in rooms such as the bedroom as an alternative to the full-sized Echo. pre-shared-key - authenticate by a password (pre-shared secret) string shared between the peers (not recommended since offline attack on pre-shared key is possible). This is covered in detail in the following PMTUD section. IP Fragmentation and. These reports help identify internal and external network threats. Understanding the attack starts with understanding the process of IP fragmentation, a communication procedure in which IP datagrams are broken down into small packets, transmitted. If there is a packet loss, you can use the traceroute command to identify where the packet loss occurs. Go to Network > Interfaces, select port 2, and click Edit. If your system is processing relative large amounts of fragmented packets, you can use the following command to improve performance by reassembling and offloading them using NP7 processors: config system npu config ip-reassembly. It is technique in which gateways break up or divide larger packets into smaller ones called fragments. These are often supplied as replacements for automotive light. RX packets:0 errors:0 dropped:0 overruns:0 frame:0. This complements a traditional speed test, which. The IKEv2 protocol is a popular choice when designing an Always On VPN solution. FortiGate Cloud / FDN communication through an explicit proxy 6. em to. The user will get disconnected after 3600 seconds (1 hour) if the connection is idle The FortiGate considers a user to be "idle" if it does not see any packets coming Fortinet FORTIOS V3 In a. pdf - Free ebook download as PDF File (. This site uses cookies. 4 : Fragmentation Needed and Don't Fragment was Set 5 : Source Route Failed 6 : Destination Network Unknown 7 : Destination Host Unknown 8 : Source Host Isolated. com -f -l 1472 and hit Enter. Complete Packet = 20B(IP Header) + 8B(ICMP Header. Fragmentation occurs when a packet is sent that exceeds the MTU of a network interface. accept and process the packets, while other instructions, such as logging and. Region -N DFS support required for FAP-U422EV. Maximum Recommendations Statistics. The ZEN IP address (Tunnel destination IP, shown as 104. The following options are available for the ip-fragmentation variable:. The FortiGate unit will reassemble fragmented packets before examining network data to ensure that inadvertent or deliberate packet fragmentation does not hide threats in network. 7345 0 Share Reply All forum topics Previous Topic Next Topic 6 REPLIES. may-drop the default CPU or host log queuing method is used. When this happens, it doesn't always. The Fortigate will drop packets in case of RPF check failure (see related article at the end of this page Details about RPF (Reverse Path Forwarding), also called Anti Spoofing, on. The FortiGate unit automatically reassembles fragmented packets before processing them because fragmented packets can evade security measures. NAT types -. We can understand about Fragmentation - if big size packet is broken into a small size (1500 byte) of packet its called fragmentation. com -f -l 1472 and hit Enter. Mark the HTTPS checkbox under Administrative access > IPv4 and click OK. You can adjust the MSS of TCP SYN packets with the ip tcp adjust-mss command. If the flag is on and the packet exceeds the MTU, the router then drops the packet instead of fragmenting it for example if router got packet with size of 3000 byte with Don't Fragment header, its simple drop the packet because its MTU size set 1500 only, so its not fragment because of Don't fragment flag is on. This syntax reduces the MSS value on TCP segments to 1460. em to. In Azure, default gateway is not pingable. The following options configure CAPWAP IP fragmentation control:. Any UDP payload this size or smaller is guaranteed to be deliverable over IP (though not guaranteed to be delivered). In Windows, you use -f in ping to set "don't fragment" bit. How is TCP MSS determined? MSS is determined by another metric that has to do with packet size: MTU, or the maximum transmission unit, which does include the TCP and IP (Internet Protocol) headers. One method to test and detect a reduced MTU size is to use a ping with a large packet size. Set the Mode to Active-Passive, set the Group Name, add a Password, and set the Heartbeat Interface Priority for the heartbeat interfaces (1-M1, 1-M2, 2-M1, and 2-M2). If the flag is on and the packet exceeds the MTU, the router then drops the packet instead of fragmenting it for example if router got packet with size of 3000 byte with Don't Fragment header, its simple drop the packet because its MTU size set 1500 only, so its not fragment because of Don't fragment flag is on. Stronger encryption algorithms equals to lower MTU values. FortiGate / FortiOS. Experiment by lowering the MTU to find an MTU size for best network performance. max_timeout is the maximum timeout value for IP reassembly 5 to 600,000,000 μs. For many years, WinPcap has been recognized as the industry-standard tool for link-layer network access in Windows environments, allowing applications to capture and transmit network packets bypassing the protocol stack, and including kernel-level packet filtering, a network statistics engine and support for remote packet capture. The CLI help uses us to represent μs or. A destination that is sent packets at this rate is considered under attack. Although the IP specification allows IP fragmentation, excessive fragmented packets can cause some systems to. One method to test and detect a reduced MTU size is to use a ping with a large packet size. If there is a packet loss, you can use the traceroute command to identify where the packet loss occurs. Sample output looks like the following: memory allocated 3 packet dropped: 0 141 ICMP 244 Destination unreachable (Port unreachable)[Packet size. The CLI help uses us to represent μs or. A fragmentation occurs when a packet exceeds the MTU set on the outgoing interface due to extra bytes added during the encapsulation. Threshold for a destination flood. Fragment non-VPN outbound packets larger than this Interface's MTU - Specifies all non-VPN outbound. Packet/second rate for the most active destination. Eliminating dropped packets on LAG interfaces on page 37. Type 10 — Router Selection. Unless block or reject rules exist in the ruleset which do not use logging, all blocked traffic will be logged. It allows data grams created as a single packet to be split into . The following options configure CAPWAP IP fragmentation control:. Check the speed settings on each interface from the GUI by moving the mouse over the interface on System > Status > Unit Operation or by running the CLI command: # dia hard device nic <interface name>. Select the SPP you want to configure from the drop-down list. Eliminating dropped packets on LAG interfaces on page 37. Fragmenting packets can result in data loss, jitter, and decreased throughput. 01, 2022 Download PDF This site uses cookies. The problem with fragmentation is that there are a number of exploits so it might be wise to drop all fragmented packets: R1(config-ext-nacl)#deny ip any any fragments RFC 3330 Address. 0 Last updated Feb. The packet is fragmented before GRE encapsulation and one of these GRE packets are fragmented again after IPv4sec encryption. 4 Connectivism. The configuration of MTU and TCP-MSS on FortiGate are very easy - connect to the firewall using SSH and run the following commands: edit system interface edit port [id] set mtu-override enable. Fortigate offers its own SSL Certifcate “ Fortigate -CA-Proxy” to the client when it does a few things: 1. If ping does not return a reply, it means that the network communication is not established. To obtain in-depth data about bandwidth and traffic management KPIs, flow technology is needed. Fragmenting packets can result in data loss, jitter, and decreased throughput. The problem with fragmentation is that there are a number of exploits so it might be wise to drop all fragmented packets: R1(config-ext-nacl)#deny ip any any fragments RFC 3330 Address. Reassembling and offloading fragmented packets is disabled by default and all fragmented packets are handled by the CPU. If there is a packet loss, you can use the traceroute command to identify where the packet loss occurs. If the router does not signal the source and destination during the TCP handshake, the optimal TCP MSS could potentially create a dropping/fragmentation problem. This site uses cookies. Enter "5060" for both the "Starting" and "Ending" ports to forward SIP traffic. Name: Something sensible! Enable Split Tunnelling: Enabled. Drop the packet (if packet is too large and DF bit is set) and send an ICMP message to the sender. Threshold for a destination flood. To support reassembling fragmented packets, the NP7 processor hash-config can be set to src-dst-ip or src-ip. If ping does not return a reply, it means that the network communication is not established. fragmented, and it is also clear, that the malicious packet is no longer dropped. Layer 3 MTU (usually called as IP MTU) is a maximum size of packet including Layer 3 header that can be transmitted without fragmentation. Share Improve this answer. The default max-timeout is 1000 μs. Since dial up uses a default MTU of 576 bytes you will not have the same problems as. Fortigate policy cli. Mar 11, 2015 · This article describes how to detect fragmented packets in a sniffer how to control fragmentation of packets before IPsec encapsulation. The problem with fragmentation is that there are a number of exploits so it might be wise to drop all fragmented packets: R1(config-ext-nacl)#deny ip any any fragments RFC 3330 Address. Firewall security monitoring. Since packets arrive at random times, it is quite possible that a queue builds up at a router. This syntax reduces the MSS value on TCP segments to 1460. Sever load balancing is also supported for: Load balancing methods. But most of the time UDP fragmentation floods use a high amount of bandwidth that is likely to exhaust the capacity of your network card, which makes this rule optional. FortiGate will still subject that person's traffic to firewall policies; it will not bypass them. This article describes how to detect fragmented packets in a sniffer how to control fragmentation of packets before IPsec encapsulation. Both IP packets and TCP packets are reassembled by the IPS engine before examination. Fortigate drop fragmented packets High density, non-blocking, wire-speed 10/25/40/50/100GbE packet capture with advanced traffic management capabilities for lossless monitoring of network traffic; Support for up to 432 ports of 100G and 1152 ports of 10/25G in a single non-blocking platform that simplifies deployment by providing higher density. Data packets have two main parts: the header and the payload. If you have a syslog server, I think it' s the best way. Fortigate drop fragmented packets High density, non-blocking, wire-speed 10/25/40/50/100GbE packet capture with advanced traffic management capabilities for lossless monitoring of network traffic; Support for up to 432 ports of 100G and 1152 ports of 10/25G in a single non-blocking platform that simplifies deployment by providing higher density. Fortigate drop fragmented packets High density, non-blocking, wire-speed 10/25/40/50/100GbE packet capture with advanced traffic management capabilities for lossless monitoring of network traffic; Support for up to 432 ports of 100G and 1152 ports of 10/25G in a single non-blocking platform that simplifies deployment by providing higher density. The default value for IP MTU is 1500 byte. The maximum safe UDP payload is 508 bytes. The protocol is not without some unique challenges, however. flmbokep
Click Advanced tab. . Fortigate drop fragmented packets
To confirm errors are increasing on IPsec VPN interface (s), periodically issue one of the below commands: A) fnsysctl ifconfig <Phase 1 name>. The FortiGate/FortiWiFi 40F series provides a fast and secure SD-WAN solution in a compact fanless desktop form factor for enterprise branch offices and mid-sized businesses. When the do-not-fragment setting ïs disabled, all packets are dropped, . Some instructions are required, such as whether to drop or. The Two-Way Active. cnf file is located in the BIN folder for OpenSSL. Step 2. Feb 1, 2022 · Hardware Acceleration. FortiGate / FortiOS. If the FortiAnalyzer unit is not receiving data from a device, or logging is not enabled under System > Config > SQL Database, it does not create log tables for that device. The following commands can be used while the command is running:. 1 8 0 192. We can understand about Fragmentation - if big size packet is broken into a small size (1500 byte) of packet its called fragmentation. The Fortigate will drop packets in case of RPF check failure (see related article at the end of this page Details about RPF (Reverse Path Forwarding), also called Anti Spoofing, on. 23 : ifconfig lan1 mtu 8000,system paniced. The CLI help uses us to represent μs or. cnf file is located in the BIN folder for OpenSSL. Click Small Rx Buffers and increase the value (The maximum value is 8192). Even IP identifier is same in both packets. and a. The default min-timeout is 64 μs. The Resolved issues described in the FortiOS 6. Step 2. Ideally, this MTU should be the same as the smallest MTU of all the networks between the FortiGate unit and the destination of the packets. · Running processes. From the CLI you configure IPv4 load balancing by adding a firewall virtual IP and setting the virtual IP type to server load balance: config firewall vip edit Vserver-HTTP-1 set type server-load-balance. MTU values on Fortigate and Sonicwalls are set to 1500 by default. Some instructions are required, such as whether to drop or. The FortiOS/FortiAP solution to this problem is to cause wireless clients to send smaller packets to FortiAP devices, resulting in1500-byte CAPWAP packets and no fragmentation. Some instructions are required, such as whether to drop or. Log message packet loss can occur if the FortiGate is very busy. The packet loss means the data was dropped somewhere in the network, indicating an issue within the network. In our speed tests I have seen a high CPU load on the Fortigate every time when I have started a transfer through the SSL VPN. From Nftables Wiki or just man nft you can use ip frag-off. To learn more about cookies, please read our privacy policy. a fragment may be discarded due to tear-drop attack (overlapping fragments), fragmentation errors, or if the firewall hits system limits on buffered fragments (hits the max packet threshold). Drop the test packet size down (10 or 12 bytes) and test again. 4 document release. If ping does not return a reply, it means that the network communication is not established. FortiGate units do not allow IPcomp packets, they compress packet payload, preventing it from being scanned. The Fortigate will drop packets in case of RPF check failure (see related article at the end of this page Details about RPF (Reverse Path Forwarding), also called Anti Spoofing, on. Further free plug-ins from users, partners or third parties are available at the Checkmk Exchange. When the sender gets this message, it knows that the packets it is sending are too large for the path. After several calls with Meraki support, they confirm via Wireshark packet capture that my Wireless APs are indeed reaching the VM during the RADIUS authentication test,. 6000 Stara Zagora 27, Ruski Blvd. Using the Cookbook, you can go from idea to execution in simple steps, configuring a secure network for better productivity with reduced risk. If the limit is reached, FortiADC will stop doing IP fragmentation reassemble. 0 Upgrade Path Tool 5. (If you don't do this then remote clients need to come though the FortiGate for web access, I usually enable split tunnel). We can understand about Fragmentation - if big size packet is broken into a small size (1500 byte) of packet its called fragmentation. Hardware Acceleration. fortigate drop fragmented packets cx MRU: The Maximum Receive Unit (MRU) of PPPoE packet. The default MTU size is 1500 bytes. The base FW/VPN system allows for up to four I/O modules and three security modules for IDP. Saved packets can be viewed and analyzed on the FortiGate unit or by using third-party analysis tools. The following options are available for the ip-fragmentation variable:. Therefore the packets have to be fragmented and if the server sets its "Don't Fragment" flag, the communication won't work. It turns out however, that Fragmented UPD is not send from the Fortigate site to the opnsense site. FortiGate is sending malformed packets causing a BGP IPv6 peering flap when there is a large amount of IPv6 routes, and they cannot fit in one packet. While fragmented packets won't get by packet filters and firewalls that queue all IP fragments, such as the CONFIG_IP_ALWAYS_DEFRAG option in the Linux kernel, some networks can't afford the performance hit this causes and thus leave it disabled. 0 Hardware Acceleration . If your FortiGate -7000E receives fragmented TCP, UDP, or ICMP packets, use the following command to make sure the Internal Switch Fabric (ISF) handles them correctly. At its virtual Capital Market Day,. By continuing to use the site, you consent to the use of these cookies. If ping does not return a reply, it means that the network communication is not established. High density, non-blocking, wire-speed 10/25/40/50/100GbE packet capture with advanced traffic management capabilities for lossless monitoring of network traffic; Support for up to 432 ports of 100G and 1152 ports of 10/25G in a single non-blocking platform that simplifies deployment by providing higher density and capacity with fewer devices. In the Connection name text box, type a name. Non-standard ports Most traffic is sent on a standard port based on the traffic. Sep 13, 2019 · This article describes techniques on how to identify and troubleshoot VPN tunnel errors due to large size packets. As well, NP7 ip-reassemly must be enabled. There are also recommendations on how to resolve common issues or test hardware for possible problems. Log message packet loss can occur if the FortiGate is very busy. Some are essential to the operation of the site; others help us improve the user experience. Maximum Recommendations Statistics. potty training regression get free mobile hotspot metropcs. The fragmentation offset value for the first fragment is. Although the IP specification allows IP fragmentation, excessive fragmented packets can cause some systems to. Understanding the attack starts with understanding the process of IP fragmentation, a communication procedure in which IP datagrams are broken down into small packets, transmitted. These problems can all be caused by various similar issues, which hopefully you will be able to find and fix using this easy way to test for them. The alert message you received is due to Fortigate going to conserve mode. The Fortigate will drop packets in case of RPF check failure (see related article at the end of this page Details about RPF (Reverse Path Forwarding), also called Anti Spoofing, on. Check "UDP" on each entry. A destination that is sent packets at this rate is considered under attack. Do not perform multiple operations simultaneously. The PMTUD works by setting the "Don't Fragment (DF)" flag bit ON, within the IP packet header. ARP traffic can cause problems, especially in Transparent mode where ARP packets arriving on one. Tourist Information Center – Stara Zagora. The problem with fragmentation is that there are a number of exploits so it might be wise to drop all fragmented packets: R1(config-ext-nacl)#deny ip any any fragments RFC 3330 Address. This site uses cookies. Tested with FOS v6. Eliminating dropped packets on LAG interfaces on page 37. The header contains information about the packet's source and destination addresses, while the payload is the actual contents of the packet. com -f -l 1472 and hit Enter. Drop the test packet size down (10 or 12 bytes) and test again. Here are some examples of how to do this. Sometimes, when we initially try to connect to the Global VPN Client (GVC) on a SonicWall firewall, the initial ISAKMP packet is fragmented due to its less size. Layer 3: fragment: Packet/second rate of fragmented packets received. layer3 device will drop the packet if the packet is larger than . MTU values on Fortigate and Sonicwalls are set to 1500 by default. FortiGate-5101C available at http. 2) Change the idle timeout in minutes (1 to 480 minutes) as required. Mark the HTTPS checkbox under Administrative access > IPv4 and click OK. . bollywood nudes, bokefjepang, craigslist puppy for sale, sister and brotherfuck, mecojo a mi hermana, what is great replacement theory, hs2 clothing mods, reesewitherspoon nude, alina al beaini, ferals comic, which of these is not a policy for monitoring the behavior of minors seeking alcohol service, kobalt impact co8rr