About Aleksandr Serov

Aleksandr Serov · 02-09-2022

Hello!Please help to troubleshoot the case with dhcp lease renewal in sd-access.According to RFC 2131 Section 4.3.2 (DHCPREQUEST generated during RENEWING state), when the client wants to extend their lease, it sends unicast DHCPREQUEST with their ow...

Aleksandr Serov · 08-20-2020

Hello, Is there any way to automate port assignment by python? When I add new switches to the fabric I have to click on hundreds of ports and assign them to appropriate data ip pool, voice ip pool and authentication template. It isn't look like a con...

Aleksandr Serov · 09-30-2019

HelloCould please someone suggest how to get session list with domain names by API?Our ISE is configured for getting passiveID from two DC . When I read session list with the requesthttps://ise/admin/API/mnt/Session/ActiveListI get only usernames and...

Aleksandr Serov · 08-01-2019

HelloCould anyone please explain the reason why every edge router in SDA is configured with "proxy-itr <self-rloc-ip>" instead of just "itr"? Thank you in advance

Aleksandr Serov · 06-13-2019

Hello,Please suggest how to add more AD attributes to the radius live logs. We use ISE 2.3 for 802.1x authentication thru ActiveDirectory. Earlier I saw a lot of AD attributes in the live logs, for example "memberOf" fields, and they helped a lot to ...

Aleksandr Serov · 02-10-2022

Thank you Flavio. I did exactly that way you are describing. I now for sure that server is responding with DCHPACK and these packets disappears somewhere among the border and the edge on their way to client.And It is my question, how to find where a...

Aleksandr Serov · 02-10-2022

HiIt is ISC DHCP server. It is working well. It respond on all requests with keeping option 82.My question was how to find and troubleshoot such cases. There are a lot of documentation how to troubleshoot edge switches and no information how to troub...

Aleksandr Serov · 02-09-2022

Hi The problem is that the client can't renew their lease. It do not get any ACK from server. According to the RFC it should renew their IP before the lease expiration. After expiration it starts getting the IP from the scratch, it broadcasts the req...

Aleksandr Serov · 09-02-2020

HelloYou may group devices on each site and apply appropriate policy on specific group

Aleksandr Serov · 09-02-2020

I made software workaround for our caseThe on-box python script runs periodically, check configuration and device-tracking database. Based on this information it add or remove static sgt-map in default vfr. From the default vrf these mappings are tra...

Member Since	‎02-17-2012 03:49 AM
Date Last Visited	‎03-08-2022 04:28 AM
Posts	26
Total Helpful Votes Received	5

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DHCP IP renewal in sd-access

How to automate Port Assignment?

ISE 2.4 How to get passiveID with domain name by API

Why proxy-itr instead of just itr

How to add more AD attributes to the live logs

Re: DHCP IP renewal in sd-access

Re: DHCP IP renewal in sd-access

Re: DHCP IP renewal in sd-access

Re: How to setup authorization policy for site 1 and site 2

Re: How to distribute manually mapped port SGT by SXP?