About Dvu77

Dvu77 · 09-23-2025

HelloI have a Problem with one of my CBS220 switches. I have a non redundant topology. One of my Links GE49 goes down but some times for 1-4min. Can the problem be because of al loop on GE3?How do you interpret it? Where you would start to searchLog...

Dvu77 · 10-15-2023

Hi ProsWe are using Cisco Switches and Fortinet Firewall and i have the following problem to solve:There are 7 Device in VLAN 55 on different Switches speaking to each other via multicastadress (membership)But there is one device which is not able to...

Dvu77 · 10-10-2019

Hello Guys For our soulution I had to block 3671 with a ACL rule on my 9300 switch. This worked so far. access-list 102 deny udp any any eq 3671access-list 102 permit ip any anyend Then I wanted to put an exzeption for one ip 192.168.12.239 this did...

Dvu77 · 10-16-2023

I think so, but i do not understand the Multicast mechanism in detail. Thx for your help.

Dvu77 · 10-12-2019

Just forgot fometing there was a slight difference... I had to put out the host command in line 2!access-list 102 permit udp any 1.1.1.239 255.255.255.0 eq 3671 access-list 102 permit udp 1.1.1.239 255.255.255.0 any eq 3671 access-list 102 deny udp a...

Dvu77 · 10-12-2019

Thx Seb This solution worked compleately fine!

Dvu77 · 10-10-2019

Thx first that works so faraccess-list 102 permit udp host 192.168.12.239 any eq 3671 access-list 102 deny udp any any eq 3671 access-list 102 permit ip any anyIf I under stand it right, if I do this... it doesn't matter where it lies. Is that correc...

Member Since	‎10-09-2019 08:25 AM
Date Last Visited	‎09-23-2025 12:59 PM
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Port 49 (mainport)goes Down ist the cause a loop? How do you interpret

Cisco Switches: Manually add IP of a device to multicastaddressgroup

ACL exzeption

Re: Cisco Switches: Manually add IP of a device to multicastaddressgro

Re: ACL exzeption

Re: ACL exzeption

Re: ACL exzeption