topic Re: C9124AXE as wgb cannot reach gateway in Wireless

C9124AXE as wgb cannot reach gateway

normankasper — Fri, 21 Jun 2024 09:13:37 GMT

Hello everyone,

I am trying to configure a C9124AXE as wgb, which works so far.

It authenticates against the ISE and is also seen as a client on the WLC.

However, I can't reach anything, not even its gateway. Does anyone here have an idea what the problem could be?

Why does the wgb not have an ARP entry from the GW, but the router has an entry from the wgb set?

AP Running Image : 17.12.3.31

Test-WGB1#sh ip int brief

Interface IP-Address Method Status Protocol

*wired0 unassigned unset down up

wired1 n/a n/a down up

auxiliary-client 10.250.34.25 static up up

Test-WGB1#sh arp
IP address HW type Flags HW address Mask Device
10.10.34.1 0x1 0x0 00:00:00:00:00:00 * srcr2

The Output of the router, where the GW is configured:

router#sh ip arp vlan 10
Protocol Address Age (min) Hardware Addr Type Interface
Internet 10.10.34.1 - 34ed.1b3e.a302 ARPA Vlan10

Internet 10.10.34.25 0 c828.e542.8cf1 ARPA Vlan10

Would be thankful for any advice

Norman

Re: C9124AXE as wgb cannot reach gateway

Mark Elsen — Fri, 21 Jun 2024 09:58:09 GMT

- Does this issue result in problems for clients too ?

Re: C9124AXE as wgb cannot reach gateway

normankasper — Mon, 24 Jun 2024 10:19:47 GMT

Hi Marce, yes - the client can't reach the GW, but it is see at the router also.

The client can reach the WGB and an arp entry is also displayed there.

test-wgb1#sh arp
IP address HW type Flags HW address Mask Device
10.10.34.1 0x1 0x0 00:00:00:00:00:00 * srcr2
10.10.34.30 0x1 0x2 a0:29:19:8f:16:8f * srcr2

Router#sh ip arp vlan 10

Protocol Address Age (min) Hardware Addr Type Interface

Internet 10.10.34.1 - 34ed.1b3e.a302 ARPA Vlan10

Internet 10.10.34.25 0 c828.e542.8cf1 ARPA Vlan10
Internet 10.10.34.30 1 a029.198f.168f ARPA Vlan10

Thanks, Norman

Re: C9124AXE as wgb cannot reach gateway

Mark Elsen — Fri, 21 Jun 2024 10:24:27 GMT

- Have a checkup of the WLC's configuration using the CLI command show tech wireless and feed the output
from that into Wireless Config Analyzer visit all tabs in the Excell look for issues related to WGB if any ,

Re: C9124AXE as wgb cannot reach gateway

normankasper — Fri, 21 Jun 2024 10:51:12 GMT

Means this output, there are no errors in the config or it meant, that the tool is not working ?

Re: C9124AXE as wgb cannot reach gateway

Mark Elsen — Fri, 21 Jun 2024 11:06:03 GMT

- Remember to use as input show tech wireless , not simple show tech neither show tech-support

Re: C9124AXE as wgb cannot reach gateway

normankasper — Fri, 21 Jun 2024 11:30:01 GMT

Yes, I did, but there is no Output or files... maybe it doesn't work for the moment, I will try next week again

Thanks

Norman

Re: C9124AXE as wgb cannot reach gateway

normankasper — Mon, 24 Jun 2024 06:08:21 GMT

Unfortunately, nothing happens when I load the file into the analyzer. It does not seem to work.

Re: C9124AXE as wgb cannot reach gateway

Mark Elsen — Mon, 24 Jun 2024 06:18:41 GMT

- Send it to me in a private messages, I will have a try with it ,

Re: C9124AXE as wgb cannot reach gateway

Rich R — Mon, 24 Jun 2024 07:37:33 GMT

Have you followed all the config steps as per https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9105axw-access-point/218043-configure-access-point-9105axw-as-work-g.html ?

Also take of the restrictions and limitations at https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-9/config-guide/b_wl_17_9_cg/m_ewlc_wgb.html and additional config detail.

Re: C9124AXE as wgb cannot reach gateway

normankasper — Tue, 25 Jun 2024 13:59:07 GMT

Hi Marce, I have now got it right, but can't find a reason why the ARP entry from the gateway is not displayed or why I can't reach the gateway from the WGB.

Does anyone else have a tip?

I have gone through the configuration instructions and have configured what we want.