I'm troubleshooting what I believe to an EIGRP issue. After some research I came across Cisco's EIGRP Tshooting document. One of the items is
"can you successfully ping between neighbors with packet sizes up to the interface MTU size" Both sides are set to 1500 bytes and I just wanted to make sure I'm using the extended ping correctly. Below is my output. I know you can get pretty in depth with the extended ping commands but wanted to make sure I wasn't missing something for my basic test. I thinks it's an EIGRP issue as the circuit dropped and when I look at the logs I get the following.
Jul 24 16:54:11.062: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 101: Neighbor 10.x.x.1 (Serial0/1/0:0) is down: holding time expired *Jul 24 16:54:17.930: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 101: Neighbor 10.x.x.1 (Serial0/1/0:0) is up: new adjacency
Site A#ping Protocol [ip]: Target IP address: 10.x.x.1 (this is the other side of the T1) Repeat count : Datagram size : 1500 Timeout in seconds : Extended commands [n]: y Source address or interface: 10.x.x.2 Type of service : Set DF bit in IP header? [no]: Validate reply data? [no]: Data pattern [0xABCD]: Loose, Strict, Record, Timestamp, Verbose[none]: Sweep range of sizes [n]: Type escape sequence to abort. Sending 5, 1500-byte ICMP Echos to 10.x.x.1, timeout is 2 seconds: Packet sent with a source address of 10.x.x.2 !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 40/42/44 ms
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You'll probably also want to also set the DF bit.
BTW, later IOS versions can take some of the extended commands with the ping command.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.