Bug 6725
| Summary: | tcpdump ignores /etc/protocols | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | B. K. Oxley (binkley) <binkley> |
| Component: | tcpdump | Assignee: | Harald Hoyer <harald> |
| Status: | CLOSED RAWHIDE | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 6.1 | CC: | binkley |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 1999-12-22 14:48:20 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Fixed in tcpdump-3.4-17. Thanks for the patch. I have seen this problem in my lab (at least its seems to be the same thing). I have had to move a machine in my lab back to 6.0 to get a reliable tcpdump. I'd love to try the fixed version, but i'm at a loss as to where I would find the tcpdump-3.4-17 package. Can you let me know where it is? Thanks. Rich |
RedHat's enhanced tcpdump ignores /etc/protocols; it has hard-coded strings for the protocol names it recognizes: all others are only accepted by number. To fix: #include <netdb.h> Then, update eth_p_parse: if (!strcmp(id, "x25")) return htons(ETH_P_X25); /* Check for protocol in /etc/protocols: */ if (pe = getprotobyname (id)) return htons (pe->p_proto); return htons(atoi(id)); libpcap seems to already do this it seems. --binkley