![]() Imagine the following scenario: 1.Create a multihop ebgp peer and config the ttl as 254 for both side. 2.Call bgp_start and start an active connection. Bgp will send a nht register with non-connected flag. 3.The function bgp_accept be called by remote connection. Bgp will create a accept peer as a passive connection with default ttl(1). And then will send a nht register again with connected flag. This register result will cover the first one. 4.The active connection come to establish first. In funciton "peer_xfer_conn", check for "PEER_FLAG_CONFIG_NODE" flag of "from_peer->doppelganger" will not be pass, so we can not repair the nht register error forever. Then the bgp nexthop will be like this: 2000::60 invalid, #paths 0, peer 2000::60 Must be Connected Last update: Thu May 4 09:35:14 2023 The route from this peer can not be treat with a vaild nexthop forever. This change will fix this error. Signed-off-by: Jack.zhang <hanyu.zly@alibaba-inc.com> |
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version.h |
FRRouting
FRR is free software that implements and manages various IPv4 and IPv6 routing protocols. It runs on nearly all distributions of Linux and BSD and supports all modern CPU architectures.
FRR currently supports the following protocols:
- BGP
- OSPFv2
- OSPFv3
- RIPv1
- RIPv2
- RIPng
- IS-IS
- PIM-SM/MSDP
- LDP
- BFD
- Babel
- PBR
- OpenFabric
- VRRP
- EIGRP (alpha)
- NHRP (alpha)
Installation & Use
For source tarballs, see the releases page.
For Debian and its derivatives, use the APT repository at https://deb.frrouting.org/.
Instructions on building and installing from source for supported platforms may be found in the developer docs.
Once installed, please refer to the user guide for instructions on use.
Community
The FRRouting email list server is located here and offers the following public lists:
Topic | List |
---|---|
Development | dev@lists.frrouting.org |
Users & Operators | frog@lists.frrouting.org |
Announcements | announce@lists.frrouting.org |
For chat, we currently use Slack. You can join by clicking the "Slack" link under the Participate section of our website.
Contributing
FRR maintains developer's documentation which contains the project workflow and expectations for contributors. Some technical documentation on project internals is also available.
We welcome and appreciate all contributions, no matter how small!
Security
To report security issues, please use our security mailing list:
security [at] lists.frrouting.org