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Hi @chels pann Yes, Cisco will take care of security fix as long as the Hardware / Software has active support and contract. They may not guarantee to upgrade the EoL/EoS Linux OS as they may be using some customised version of it, but they will help...
HI @mariusz1984katowice It's not working as expected when CEF is disabled in IOL L3. You enable "ip cef" in SourcePC and check, it will work as expected. Real devices will work as expected, this seems to be some bug / issue with that specific IOL L3 ...
Hi @Sampson Luo You're in config mode. Come back to EXEC mode, then try to run below commands and share logs. end << -- to get back to EXEC mode. You can also use 'exit'
show logging onboard uptime
show logging onboard uptime detail
show logging ...
For study purpose, you practise all the different possibilities like connecting DHCP server to the same switch as of hosts or keep a separate switch just for DHCP server or configure DHCP service in router or keep the DHCP server in a different broad...
Could you please share "show ip int br | ex unass" and check how the DHCP Discover from that client hits the Router. Ideally it should hit the router via interface GigabitEthernet4