Timeline for Unable to ping between router and routed port on L3 switch. Why?
Current License: CC BY-SA 4.0
26 events
| when toggle format | what | by | license | comment | |
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| Jan 1, 2021 at 15:58 | vote | accept | ahelton | ||
| Jan 1, 2021 at 15:57 | answer | added | ahelton | timeline score: 0 | |
| Jan 23, 2020 at 7:41 | answer | added | Mahdi | timeline score: -1 | |
| Jan 22, 2020 at 22:38 | comment | added | ahelton | I tried two different cables and the same cables work if the port is in L2 switchport mode, but I'm wondering whether or not when I enable IP Routing and put a interface into routed mode do I need to then use a crossover cable? I only start having issues when I place it in L3 routed mode. I thought the interface would be down if that's the case, but I'm kind of at a loss as to why it's not working. What's also weird is CDP works as each device picks up the other device. I don't know, maybe I'll try it on a different interface and see if that works. | |
| Jan 22, 2020 at 22:30 | comment | added | Ron Trunk | Everything looks right. But I see “unknown protocol drops”. Faulty cable? | |
| Jan 22, 2020 at 20:42 | comment | added | ahelton | @RonMaupin Added. | |
| Jan 22, 2020 at 20:42 | history | edited | ahelton | CC BY-SA 4.0 |
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| Jan 22, 2020 at 20:33 | comment | added | Ron Trunk |
show interface gi 1/1 not show ip interface gi 1/1. Same for Fa0/1
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| Jan 22, 2020 at 20:26 | history | edited | ahelton | CC BY-SA 4.0 |
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| Jan 22, 2020 at 20:25 | comment | added | ahelton | @RonMaupin Okay. Added show output you requested. Also, I edited it original info to reflect the fact the router is using f0/1 and not f0/0. | |
| Jan 22, 2020 at 20:15 | comment | added | ahelton | @RonMaupin Sorry. Was getting you mixed with Zac. I'll post the show outputs from those as well. | |
| Jan 22, 2020 at 20:14 | comment | added | Ron Maupin♦ |
I really want the show commands I asked for. They will explain the current state of the interfaces.
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| Jan 22, 2020 at 20:13 | comment | added | ahelton | @RonMaupin Added config and show ip route info. If that's not everything you wanted let me know. | |
| Jan 22, 2020 at 20:13 | history | edited | ahelton | CC BY-SA 4.0 |
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| Jan 22, 2020 at 19:46 | comment | added | ahelton | @Zac67. Got it. I didn't know if I needed to since I wiped all previous configuration on both devices and then reloaded both of them. I'll get that posted shortly. Thanks. | |
| Jan 22, 2020 at 19:42 | comment | added | ahelton | @RonMaupin Okay. It's just that the PC I have connected via the console cable to my Cisco device doesn't currently have an Internet connection. That's why I asked about the TFTP option. I'm typing this from a different location, so give me just a bit. | |
| Jan 22, 2020 at 19:38 | comment | added | Zac67♦ | @ahelton Please add the full (sanitized) configurations to your question. As it is, you're not providing enough information. | |
| Jan 22, 2020 at 19:38 | comment | added | Ron Maupin♦ |
Simply entere the commands in your terminal application, then copy the lines and paste into your question using the Preformatted-text option ({}).
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| Jan 22, 2020 at 19:37 | comment | added | ahelton | @Zac67 It was just to experiment with things. I had it set to auto initially, but still the ping failed. | |
| Jan 22, 2020 at 19:36 | comment | added | Zac67♦ | DON'T set speed/duplex manually, generally. There are very few situations where this is required and otherwise it does much more harm than good. A duplex mismatch might be hard to spot. | |
| Jan 22, 2020 at 19:33 | comment | added | ahelton | @RonMaupin Is there a way to save a txt file of a command out to tftp server? I'm kind of new at this. | |
| Jan 22, 2020 at 19:30 | comment | added | Ricky |
And show ip arp It might not be answering ping.
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| Jan 22, 2020 at 19:28 | comment | added | Ron Maupin♦ |
You should include the output from show ip interfaces brief and show ip interface g1/1 on the switch and show ip interface f0/0 on the router.
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| Jan 22, 2020 at 19:24 | comment | added | Ron Trunk | Verify that both sides are 100M full-duplex | |
| Jan 22, 2020 at 19:22 | history | edited | ahelton | CC BY-SA 4.0 |
Add details
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| Jan 22, 2020 at 19:15 | history | asked | ahelton | CC BY-SA 4.0 |