# RFC 4721: Mobile IPv4 Challenge/Response Extensions (Revised)

> request for comments publication

**Wikidata**: [Q47469810](https://www.wikidata.org/wiki/Q47469810)  
**Source**: https://4ort.xyz/entity/rfc-4721-mobile-ipv4-challenge-response-extensions-revised-


## References

1. RFC Index
2. DBLP Dataset 2021-01-02