Questions tagged [cisco-ios-12]

Major release 12 of Cisco's IOS software

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votes
7answers
14k views

DHCP relay problem on interfaces secondary network

A secondary network was configured on an interface of a Cisco 2621 router and the ip helper-address commands put in place but no clients of that secondary network could pull DHCP addresses. We swapped ...
4
votes
2answers
22k views

SNMP: Configuring/Enabling SNMPv3 on Cisco IOS and SNMP Agent

I have been configuring and using SNMP v2c on Cisco routers. Due to the obvious advantages in SNMP v3, I am planning on enabling SNMP v3 on SNMP v3 supported devices. Could someone let me know: The ...
2
votes
1answer
5k views

Configure SSH cipher on Cisco IOS 12.2(55)SE7

Today a customer contacted me because he has upgraded his MacBook to MacOS X Sierra and since then, when trying to access a switch via SSH he got the message Unable to negotiate with 10.XX.XX.XX ...