tcpdump mailing list archives
Re: Sending a packet to localhost?
From: Guy Harris <guy () alum mit edu>
Date: Mon, 23 Feb 2009 13:55:23 -0800
On Feb 23, 2009, at 1:29 PM, Aaron Turner wrote:
tcpdump/Wireshark will show you the Linux SLL header.
...although that's not the format of the link-layer header on packets on the Linux loopback interface; those packets have fake Ethernet headers.
(The SLL header is synthesized by libpcap for link layers that either1) have a link-layer header type for which there isn't (yet) a DLT_ value;
2) don't supply a usable link-layer header (e.g., PPP, which doesn't provide such unimportant information as the packet type);
3) don't necessarily have *a* link-layer header (e.g., the any device, which can supply packets from multiple different link-layer types).)
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Current thread:
- Sending a packet to localhost? Oliver Zheng (Feb 22)
- Re: Sending a packet to localhost? Tyler Littlefield (Feb 22)
- Re: Sending a packet to localhost? Oliver Zheng (Feb 23)
- Re: Sending a packet to localhost? Aaron Turner (Feb 23)
- Re: Sending a packet to localhost? Oliver Zheng (Feb 23)
- Re: Sending a packet to localhost? Aaron Turner (Feb 23)
- Re: Sending a packet to localhost? Guy Harris (Feb 23)
- Re: Sending a packet to localhost? Aaron Turner (Feb 23)
- Re: Sending a packet to localhost? Oliver Zheng (Feb 23)
- Re: Sending a packet to localhost? ronnie sahlberg (Feb 23)
- Re: Sending a packet to localhost? Oliver Zheng (Feb 23)
- Re: Sending a packet to localhost? Guy Harris (Feb 23)
- Re: Sending a packet to localhost? Tyler Littlefield (Feb 22)