Packet Captures

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icmp with record route option set.cap (1.2 KB)

Packets: 10 Duration: 2s Downloads: 3349

ping packet with record route option set and IP addresses of all outgoing and incoming interfaces along the path.
In that we can also see position of current pointer.

  • Categories: None
  • Protocols: ICMP, IP

traceroute_MPLS.cap (3.3 KB)

Packets: 29 Duration: 3s Downloads: 7927

PPP_negotiation.cap (4.6 KB)

Packets: 63 Duration: 67s Downloads: 5707

PPP.cap (3.6 KB)

Packets: 50 Duration: 83s Downloads: 3659

ICMP across a PPP serial link.

path_MTU_discovery.cap (6.2 KB)

Packets: 8 Duration: n/a Downloads: 4598

Tracepath is used to determine the MTU of the path between hosts 192.168.0.2 and .1.2. Packet #6 contains an ICMP "fragmentation needed" message, indicating the MTU for that hop is 1400 bytes.

MPLS_encapsulation.cap (1.3 KB)

Packets: 10 Duration: n/a Downloads: 4787

Capture taken from the PE1-P1 link. ICMP traffic between CE1 and CE2 is encapsulated outbound with MPLS label 18. Note that returning traffic is not labeled, due to penultimate hop popping (PHP).

IP_in_IP.cap (1.5 KB)

Packets: 10 Duration: n/a Downloads: 5346

Direct IP-in-IP tunnel encapsulation (configured in Cisco IOS with tunnel mode ipip).

ICMP_across_frame_relay.cap (1.2 KB)

Packets: 10 Duration: n/a Downloads: 3319

A Cisco 3725 pinging its neighbor across a point-to-point frame relay connection.

ICMP_across_dot1q.cap (1.7 KB)

Packets: 15 Duration: 35s Downloads: 5046

A ping issued from 192.168.123.2 to 192.168.123.1 is encapsulated with an IEEE 802.1Q header, placing it in VLAN 123.

HDLC.cap (3.4 KB)

Packets: 38 Duration: 111s Downloads: 3207

ICMP across an HDLC serial link.

Viewing 1 - 10 of 10

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