Cisco Router Diagnose
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Ping einfach
unkerich#ping arilon Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.240.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
Ping erweitert
unkerich#ping Protocol [ip]: Target IP address: 192.168.240.100 Repeat count [5]: Datagram size [100]: Timeout in seconds [2]: Extended commands [n]: y Source address or interface: 172.22.2.1 Type of service [0]: 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, 100-byte ICMP Echos to 192.168.240.100, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/4/8 ms
Traceroute
unkerich#traceroute www.1fck.de Translating "www.1fck.de"...domain server (192.168.240.21) [OK] Type escape sequence to abort. Tracing the route to www.1fck.de (78.46.48.17) 1 zonk.alpha.quadrant (192.168.254.17) 0 msec 0 msec 4 msec 2 83-169-166-158-isp.superkabel.de (83.169.166.158) 8 msec 4 msec 8 msec 3 83-169-176-158-isp.superkabel.de (83.169.176.158) 12 msec 12 msec 16 msec 4 83-169-183-102-isp.superkabel.de (83.169.183.102) 16 msec 12 msec 12 msec 5 83-169-128-86-isp.superkabel.de (83.169.128.86) 12 msec 16 msec 17 msec 6 83-169-128-89-isp.superkabel.de (83.169.128.89) 16 msec 12 msec 12 msec 7 decix-gw.hetzner.de (80.81.192.164) 16 msec 16 msec 20 msec 8 hos-bb1.juniper1.rz8.hetzner.de (213.239.240.240) 20 msec 20 msec 20 msec 9 gi.4.1.rs3k7.rz8.hetzner.de (213.239.242.41) 20 msec 16 msec 16 msec 10 www.1fck.de (78.46.48.17) 16 msec 16 msec 16 msec
Debugging
ICMP
unkerich#debug ip icmp ICMP packet debugging is on unkerich#terminal monitor unkerich# 6d02h: ICMP: echo reply sent, src 172.22.2.1, dst 172.22.2.2 6d02h: ICMP: echo reply sent, src 172.22.2.1, dst 172.22.2.2 6d02h: ICMP: echo reply sent, src 172.22.2.1, dst 172.22.2.2 6d02h: ICMP: echo reply sent, src 172.22.2.1, dst 172.22.2.2 6d02h: ICMP: echo reply sent, src 172.22.2.1, dst 172.22.2.2 6d02h: ICMP: echo reply sent, src 172.22.2.1, dst 172.22.2.2 6d02h: ICMP: echo reply sent, src 172.22.2.1, dst 172.22.2.2 6d02h: ICMP: echo reply sent, src 172.22.2.1, dst 172.22.2.2 unkerich# no debug all
Dialer
unkerich#debug dialer packets Dial on demand packets debugging is on