![]() You need an IP address on Vlan 2 on Switch 2 for that to work. I need to be able to ping PC-B to PC-A, PC-E to PC-D, and PC-A to D. R2 can ping Switches and PCs D and E but not A and B, as well as all the default gateways. If only Switch1 is a Layer 3 switch, you need a common management network on both switches, which can be Vlan 2. On the other hand, R1 and R2 can ping each other successfully, and R1 can ping Switches and PCs A and B but not D and E, as well as all the default gateways. If you have both as Layer 3, the default gateways need to be configured on the directly connected switches. You need to decide if you want one or both switches to be Layer 3. Username cisco privilege 15 password 7 0822455D0A16 No service timestamps debug datetime msec Below are the working configs if only Switch1 is Layer 3: If only Switch1 is a Layer 3 switch, you need a common management network on both switches, which can be Vlan 2. Inet6 fe80::1%lo0 prefixlen 64 scopeid 0x7Īlso so we are sure.You need to decide if you want one or both switches to be Layer 3. You do show your lo up and on 127.0.0.1? with an ifconfig lo0: flags=8049 metric 4 Pass out on lo0 inet6 all flags S/SA keep state label "pass IPv6 loopback" Pass in on lo0 inet6 all flags S/SA keep state label "pass IPv6 loopback" Pass out on lo0 inet all flags S/SA keep state label "pass IPv4 loopback" ![]() If this command is successful, you know that the TCP/IP protocol suite is installed correctly on your system and functioning. ping the IP address of your local loopback, using the command ping 127.0.0.1. Pass in on lo0 inet all flags S/SA keep state label "pass IPv4 loopback" When troubleshooting with ping, take the following steps: 1. close all web browsers, bit torrent clients, anything that might be making a network connection. That is the only thing I have ever seen that would cause a response from localhost to exceed <1ms. So here example you see me doing that above test while doing a packet capture on localhost for my port 8443įor grins check your loopback rules pfctl -sr | grep loopback It sounds like you might have a service running locally that might be producing this behavior. So you can actually see the connection attempt, and the source IP, etc. * SSL certificate problem: self signed certificate in certificate chainĬurl: (60) SSL certificate problem: self signed certificate in certificate chainĪlso sniff on the localhost while you try and do your test. * TLSv1.2 (OUT), TLS alert, unknown CA (560): ![]() * TLSv1.2 (IN), TLS handshake, Certificate (11): * TLSv1.2 (IN), TLS handshake, Server hello (2): * TLSv1.2 (OUT), TLS handshake, Client hello (1): Then, ping the IP address to see if it works this time. Press Ok in both windows to save the applied changes. To check for your router’s default gateway, you can refer online or simply check the device’s sticker. C 192.168.151.0/24 is directly connected, Vlan151. In the properties window, find the Default Gateway tab and set the correct IP. Your Loopback is in the same network tha your Vlan 151 and the router gives priority to Vlan 151. configuration of 2811 looks like this as well as 3750. Try it by typing in commands like ping 127.0.0.1 (IPv4) or ping ::1. You will see all loopback traffic just the same way as other non-loopback adapters. In Wireshark, your aree right: this adapter can be chosen to capture packets to localhost. * TLSv1.2 (OUT), TLS header, Certificate Status (22): For some reason I cannot ping loopback address, The loopback is for a cme. After installation, Npcaps setup will create this adapter ('Npcap Loopback Adapter'). * CAfile: /usr/local/share/certs/ca-root-nss.crt * Cipher selection: successfully set certificate verify locations: Lets see the output of your curl with the -v so we can see exactly what is going on. Software Loopback Interface 1 12.00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface 19.00 00 00 00 00 00 00 e0 Microsoft. ![]() As for how to fix that problem, it could be caused by anything. on mine for example ps -ax | grep 82772Ĩ2772 - Is 0:00.00 nginx: master process /usr/local/sbin/nginx -c /var/etc/nf (nginx)Īgain there is no firewall rule that would prevent access to itself. If you dont see the IP address that youre trying to ping, then that explains why your pings are returning unreachable from your own machine. Those are the pids of the processes, 2 workers and the main one.
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