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  • Firewall rules for ICMP (TCP UDP port 7) - Cisco Learning Network
    You need to clarify the source and destination of the rules to add context in order to understand this further, as TCP UDP port 7 could literally be anything (SMTP, HTTP, HTTPS, etc) if the server has been configured that way While the default port descriptions can help, this could be a bespoke server that ran runs a custom service on port 7
  • Cant ping a host on a layer 2 switch using Cisco Virl
    SW#3 interfaces gi0 1 -2 are trunk ports and can ping all other switches successfully with my current config (not pictured) I just can't ping my host Interface gi0 3 is an access port with access to vlan 10, I created a vlan 10 svi on SW3 which I can also ping from other switches
  • Ping from routed switch to host - Cisco Learning Network
    I CAN ping 192 168 2 3 on SW2 because it is routing I was using Router 1 as Router-on-a-Stick and all worked!! Experimenting with using routing on the switch Want to be able to use Host 1 on 192 168 2 3 as tftp server This ALL worked with router 1 as RoaS I just want to know how to make it work here How to I configure SW1 to be able to
  • What UDP ports to open for UDP traceroute? - Cisco Learning Network
    The default probes-per-hop is usually 1 or 3 Using the more liberal defaults of 64 and 3, the range would be 33434-33625 In practice a max-ttl of 32 is usually more than enough in which case the range would be 33434-33529 Also note that IANA has allocated only port 33434 to traceroute, but it has left 33435-33655 unallocated
  • Cisco Learning Network
    I am using GNS3 for simulation here Routers can ping themselves but can not ping any F0 0 interface on the other two routers Pings to (s2 0)s are successful here is an excerpt from the running-config: R1: Hostname R1 interface Loopback1 description Engineering Department ip address 10 1 1 1 255 255 255 0 exit interface FastEthernet0 0
  • Cisco Learning Network
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  • Source ip changes during the dynamic Ping - Cisco Learning Network
    In case of the ping, if you want the source address to be 10 10 10 1 you should perform the following: ping 2 2 2 2 source [exit-interface-name|<ip-address-of-the-exist-interface>] Bear in mind, if you do that and shutdown the interface, the ping will fail as the reply to the ip-address will no longer be available Kind regards, Liz
  • Cant ping between router and switch - Cisco Learning Network
    I changed router int g0 0 to be in same subnet of switch 192 168 10 2 24 I can now ping g0 0 from switch but have to assign default-gateway of 192 168 10 2 on each switch for each switch to be able to ping router I can ping router g0 1 172 16 1 1 from switch but cannot ping beyond this port (I have a computer connected with nic 172 16 1 2)


















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